Question

Find the value of x if the following number are in continued proportion 20 25 x

Answer 1

Explanation:

Let us write the number in propotion

20:25: :25:x

Middle numbers are called mean numbers

First and last numbers are called extremes numbers

Means

25 and 25 are mean numbers

20 and x are extremes numbers

25x25 = 625

20x X = 625

x = 625/20

x = 31.2

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