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Finding the Fourth Proportional to 22,729.92, 31,363.56 and 12,658.11

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Solution

The fourth proportional to 22,729.92, 31,363.56 and 12,658.11 is: 17,466.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.92 : 31,363.56 = 12,658.11 : x
  2. Step 2: Convert to fraction form
    22,729.92/31,363.56 = 12,658.11/x
  3. Step 3: Cross multiply
    22,729.92x = 31,363.56 × 12,658.11
  4. Step 4: Simplify right side
    22,729.92x = 397,003,392.47
  5. Step 5: Solve for x
    x = 397,003,392.47/22,729.92
  6. Step 6: Final answer
    x = 17,466.11

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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.