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Finding the Fourth Proportional to 22,272.43, 30,735.13 and 12,200.97

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Solution

The fourth proportional to 22,272.43, 30,735.13 and 12,200.97 is: 16,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.43 : 30,735.13 = 12,200.97 : x
  2. Step 2: Convert to fraction form
    22,272.43/30,735.13 = 12,200.97/x
  3. Step 3: Cross multiply
    22,272.43x = 30,735.13 × 12,200.97
  4. Step 4: Simplify right side
    22,272.43x = 374,998,399.08
  5. Step 5: Solve for x
    x = 374,998,399.08/22,272.43
  6. Step 6: Final answer
    x = 16,836.89

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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.