Question

what is the mean proportional
of 4and 25
​

Answer 1

Answer:

b²=ac

b=√25×4=10

Step-by-step explanation:

a:b::b:c is proportion

Product of means= Product of extremes

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Answer 2

Step-by-step explanation:

Suppose that x is the mean proportional

Then, 4 : x : x : 25

=> 4 × 25 = x × x

=> x2 = 100

=> x = 10

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