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Finding the Fourth Proportional to 16,112.72, 22,194.12 and 11,388.88

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Solution

The fourth proportional to 16,112.72, 22,194.12 and 11,388.88 is: 15,687.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,112.72 : 22,194.12 = 11,388.88 : x
  2. Step 2: Convert to fraction form
    16,112.72/22,194.12 = 11,388.88/x
  3. Step 3: Cross multiply
    16,112.72x = 22,194.12 × 11,388.88
  4. Step 4: Simplify right side
    16,112.72x = 252,766,169.39
  5. Step 5: Solve for x
    x = 252,766,169.39/16,112.72
  6. Step 6: Final answer
    x = 15,687.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.