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Finding the Fourth Proportional to 72,587.49, 108,881.25 and 22,671.87

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Solution

The fourth proportional to 72,587.49, 108,881.25 and 22,671.87 is: 34,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,587.49 : 108,881.25 = 22,671.87 : x
  2. Step 2: Convert to fraction form
    72,587.49/108,881.25 = 22,671.87/x
  3. Step 3: Cross multiply
    72,587.49x = 108,881.25 × 22,671.87
  4. Step 4: Simplify right side
    72,587.49x = 2,468,541,545.44
  5. Step 5: Solve for x
    x = 2,468,541,545.44/72,587.49
  6. Step 6: Final answer
    x = 34,007.81

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Why These Related Problems?

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