If $x, 24, 30$ and $16$ are in proportion, then $x =____$ $[x = 20 / x = 45]$

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Solution

Since $x, 24, 30$ and $16$ are in proportion.
Therefore,
$\frac{x}{24} = \frac{30}{16} x = \frac{30 \times 24}{16} x = 45$
Hence, the value of $x = 45$ .

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