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" C to D. The quantities which are compared together are called the terms of the proportion. The first and last terms are called the two extremes, and the second and third terms, the two means. "
Concrete Geometry: Introductory to Formal Plane Geometry - Page 116
by Theophilus Nelson - 1902
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Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1836 - 394 pages
...thus, A : B :; C : D, and read, A is to B as C is to D. The quantities which are compared together are called the terms of the proportion. The first and last terms are called the two extremes, and the second and third terms, the two means. 3. Of four proportional quantities,...
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First Lessons in Algebra: Embracing the Elements of the Science

Charles Davies - Algebra - 1839 - 264 pages
...quantities thus : A ; B ; : C : D; and read, A is to B as C to D. The quantities which are compared together are called the terms of the proportion. The first and last terms are called the two extremes, and the second and third terms, thfe two means. Thus, A and D are the extremes,...
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Elements of Algebra

Algebra - 1839 - 368 pages
...quantities thus, A : B : : C : D. and read, A is to B, as C to D. The quantities which are compared together are called the terms of the proportion. The first and last terms are called the two extremes, and the second and third terms the two means. 170. Of four proportional quantities,...
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Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - Algebra - 1842 - 284 pages
...thus : A : B : : C : D ; and read, A is to B as C to D. The quantities which are compared together are called the terms of the proportion. The first and last terms are called the two extremes, and the second and third terms, the two means. Thus, A and D are the extremes,...
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The School and the Schoolmaster: A Manual for the Use of Teachers, Employers ...

Alonzo Potter, George Barrell Emerson - Education - 1842 - 586 pages
...5=9 : 15. Another in which the ratio shall be $ths. 4:9 = 12:27, &c. The four numbers which form a proportion are called the terms of the proportion ; the first and last are called the extremes, and the second and third are called the middle terms, or the means. Now examine...
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Elements of Plane Geometry: For the Use of Schools

Nicholas Tillinghast - Geometry, Plane - 1844 - 108 pages
...written thus ; 12 : 6 : : 8 : 4, which is read, 12 is to 6, as 8 is to 4. 3. The numbers which make a proportion are called the terms of the proportion ; the first and last terms are called the extremes, the second and third the means. 4. The first and third terms are called antecedents,...
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Elements of Algebra: Including Sturms' Theorem

Charles Davies - Algebra - 1845 - 382 pages
...thus, A : B : : C : D, and read, A is to B, as C is to D. The quantities which are compared together are called the terms of the proportion. The first and last terms are called the two extremes, and the second and third terms, the two means. 170. Of four proportional quantities,...
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A Treatise on Algebra

Elias Loomis - Algebra - 1846 - 376 pages
...another; two equal ratios form a proportion. (210.) In the proportion a : b : : с : d, a, b, c, d are called the terms of the proportion. The first and last terms are called the extremes, the second and third the meansThe first term is called the first antecedent, the...
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A Treatise on Algebra

Elias Loomis - Algebra - 1846 - 380 pages
...by another; two equal ratios form a proportion. (210.) In the proportion a : b : : c : d, a, b, c, d are called the terms of the proportion. The first and last terms are called the extremes, the second and third the means* The first term is called the first antecedent,...
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Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - Algebra - 1848 - 302 pages
...thus : A : B : : C : D ; and read, A is to B as C to D. The quantities which are compared together are called the terms of the proportion. The first and last terms are called the two extremes, and the second and third terms, the two means. Thus, A and D are the extremes,...
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