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Finding the Fourth Proportional to 67,572.75, 101,359.17 and 18,324.75

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Solution

The fourth proportional to 67,572.75, 101,359.17 and 18,324.75 is: 27,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,572.75 : 101,359.17 = 18,324.75 : x
  2. Step 2: Convert to fraction form
    67,572.75/101,359.17 = 18,324.75/x
  3. Step 3: Cross multiply
    67,572.75x = 101,359.17 × 18,324.75
  4. Step 4: Simplify right side
    67,572.75x = 1,857,381,450.46
  5. Step 5: Solve for x
    x = 1,857,381,450.46/67,572.75
  6. Step 6: Final answer
    x = 27,487.14

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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.