Question

what value of x will make 25, x and 9 in continued proportion​

Answer 1

Answer:

Given, x,5,10,y are in continued proportion

Then, 5x=105=y10

If 5x=105

⇒10x=25

⇒x=2.5

If 105=y10

⇒5y=100

⇒y=20 

So, x=2.5 and y=20.

Step-by-step explanation:

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Answer 2

Answer:

x=15

Step-by-step explanation:

25:x::x:9

Product of means=Product of extremes

x*x=25*9

x^2=225

x=√225

x=15