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The square root of the product of 4 and a number is 26

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  1. Taking the number as x,

    Product = 4x
    Square root of product = √(4x)
    = 2√x
    As per the question,

    Square root of product = 26
    => 2√x = 26
    => √x = 13
    => x = 13^2 = 169

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