Find the Third Proportional of 1.8 and 0.6

Find the third proportional of 1.8 and 0.6

Sum

Third proportional to 1.8 and 0.6

`= (0.6 xx 0.6)/1.8 = 0.36/1.8 = 36/180`

`= 1/5 = 0.2`

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Chapter 6: Ratio and Proportion (Including Sharing in a Ratio) - Exercise 6 (B)

Chapter 6 Ratio and Proportion (Including Sharing in a Ratio)
Exercise 6 (B) | Q 3.3

Find sub-duplicate ratio of (x – y)⁴ : (x + y)⁶

If p : q = 2 : 5 , q : r = 4 : 3, then find p : r

Reduce the following ratio to their lowest term:
1 hour 20 min : 2 hours

Solve for x: `(3x^2 + 5x + 18)/(5x^2 + 6x + 12) = (3x + 5)/(5x - 6)`.

If x and y be unequal and x: y is the duplicate ratio of (x + z) and (y + z) prove that z is mean proportional between x and y.

The sum of three numbers, whose ratios are `3 1/3 : 4 1/5 : 6 1/8` is 4917. Find the numbers.

Which ratio is smaller:

`9/17` or `8/15`

Find two numbers in the ratio of 8 : 7 such that when each is decreased by , they are in the ratio 11 : 9.

If `a/b = c/d = c/f`, prove that each ratio is `sqrt((3a^2 - 5c^2 + 7e^2)/(3b^2 - 5d^2 + 7f^2)`

Which pair of ratios are equal? And why?

`2/3, 4/6`