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Finding the Fourth Proportional to 15,640.64, 23,463.31 and 4,545.88

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Solution

The fourth proportional to 15,640.64, 23,463.31 and 4,545.88 is: 6,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.64 : 23,463.31 = 4,545.88 : x
  2. Step 2: Convert to fraction form
    15,640.64/23,463.31 = 4,545.88/x
  3. Step 3: Cross multiply
    15,640.64x = 23,463.31 × 4,545.88
  4. Step 4: Simplify right side
    15,640.64x = 106,661,481.56
  5. Step 5: Solve for x
    x = 106,661,481.56/15,640.64
  6. Step 6: Final answer
    x = 6,819.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.