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Finding the Fourth Proportional to 41,901.69, 62,839.03 and 13,815.21

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Solution

The fourth proportional to 41,901.69, 62,839.03 and 13,815.21 is: 20,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,901.69 : 62,839.03 = 13,815.21 : x
  2. Step 2: Convert to fraction form
    41,901.69/62,839.03 = 13,815.21/x
  3. Step 3: Cross multiply
    41,901.69x = 62,839.03 × 13,815.21
  4. Step 4: Simplify right side
    41,901.69x = 868,134,395.65
  5. Step 5: Solve for x
    x = 868,134,395.65/41,901.69
  6. Step 6: Final answer
    x = 20,718.36

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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.