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We know the formula to find the fourth proportion - => a : b = c : d => 18 : 22 :: 27 : d => d = (27 × 22)/18 => d = 33
Statement : There are no river sand quarries employing machines and sand extraction is done manually and transportation through carts.
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Statement: The alumni of the institute returned to rescue crumbling building of 112-year-old alma mater.