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Finding the Fourth Proportional to 20,073.44, 27,732.84 and 13,819.16

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Solution

The fourth proportional to 20,073.44, 27,732.84 and 13,819.16 is: 19,092.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.44 : 27,732.84 = 13,819.16 : x
  2. Step 2: Convert to fraction form
    20,073.44/27,732.84 = 13,819.16/x
  3. Step 3: Cross multiply
    20,073.44x = 27,732.84 × 13,819.16
  4. Step 4: Simplify right side
    20,073.44x = 383,244,553.21
  5. Step 5: Solve for x
    x = 383,244,553.21/20,073.44
  6. Step 6: Final answer
    x = 19,092.12

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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.