Question
Fill in the blank: If $25, 35\ x$ are inproportion, then $x =$ ......

Answer

If $25, 35\ x$ are inproportion, then $\text{x}=\frac{1225}{25}=49$
Given:
$25, 35 :: 35 : x$
Now, we know
Product of extremes = Product of means $25\times\text{x }=34\times35$
$\text{x}=1225$ $\text{x}=\frac{1225}{25}=49$

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