| George Clinton Shutts - Geometry - 1912 - 392 pages
...that point by the two tangents to the circle. 315. THEOREM. // two secants intersect without a circle, **the ratio of the first to the second is equal to the ratio of the** external segment of the second to the external segment of the first. Given a circle with secants AB... | |
| John William Hopkins, Patrick Healy Underwood - Arithmetic - 1912 - 396 pages
...Thus, f = £ becomes f = §, and is = M becomes | =|. Four quantities are said to be in proportion, or **to be proportional when the ratio of the first to the second** equals the ratio of the third to the fourth. The numbers, 2, 3, 4, 6 are in proportion for, | = £.... | |
| Mathematics - 1915
...ratios is said to form a proportion, or in other words four quantities are said to be in proportion **when the ratio of the first to the second is equal to the ratio of the** third to the fourth. Thus 5 ft. $25 2 ft. $10 is a proportion. This is often written 5 ft. : 2 ft.... | |
| George Hervey Hallett, Robert Franklin Anderson - Algebra - 1917 - 402 pages
...Find the numbers. Proportion 171. Definitions. Four numbers or quantities are said to be in proportion **when the ratio of the first to the second is equal to the ratio of the** third to the fourth. Remark. In what follows we shall use the expression, the ratio of one number to... | |
| Harry Morton Keal, Nancy Seymour Phelps - Mathematics - 1917 - 240 pages
...x-2 5x-7 l0x+11 12. 3x-5 6x+ 7 3x DIRECT VARIATION 91 20. Find three consecutive numbers such that **the ratio of the first to the second is equal to the ratio of** 5 times the third to 5 times the first plus 16. Variation 101 Direct Proportion: If a train travels... | |
| Harry Morton Keal - Mathematics - 1917 - 148 pages
...21° to the supplement of the same angle. Find the angle. 20. Find three consecutive numbers such that **the ratio of the first to the second is equal to the ratio of** 5 times the third to 5 times the first plus 16. Variation 101 Direct Proportion: If a train travels... | |
| Henry Sinclair Hall - 1918 - 384 pages
...ж = y, or г = ж + y. У PROPORTION. 348. DEFINITION. Four quantities are said to be in proportion **when the ratio of the first to the second is equal to the ratio of the** third to the fourth. The four quantities are called proportionals, or the terms of the proportion.... | |
| Edson Homer Taylor - Mathematics - 1919 - 276 pages
...o:f=f:5. AK IK 6.8:11=24:1. 10. — = £?• 16. a : 4 = 4. : 12. TO 36 39. Proportional lines. Four lines **are said to be proportional when the ratio of the first to the second** equals the ratio of the third to the fourth. Draw a triangle ABC with AB = & in., BC = 4 in., and AC=3... | |
| Emile Borel - Relativity (Physics) - 1926 - 256 pages
...diagonal and side of a square, we can easily prove by geometry that the ratio of the first remainder **to the second is equal to the ratio of the second to the third,** and so on; it is therefore impossible that the operation should come to an end. This geometrical fact... | |
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