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Finding the Fourth Proportional to 22,132.92, 30,543.87 and 12,061.79

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Solution

The fourth proportional to 22,132.92, 30,543.87 and 12,061.79 is: 16,645.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,132.92 : 30,543.87 = 12,061.79 : x
  2. Step 2: Convert to fraction form
    22,132.92/30,543.87 = 12,061.79/x
  3. Step 3: Cross multiply
    22,132.92x = 30,543.87 × 12,061.79
  4. Step 4: Simplify right side
    22,132.92x = 368,413,593.01
  5. Step 5: Solve for x
    x = 368,413,593.01/22,132.92
  6. Step 6: Final answer
    x = 16,645.50

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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.