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Finding the Fourth Proportional to 48,989.88, 67,605.96 and 29,869.65

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Solution

The fourth proportional to 48,989.88, 67,605.96 and 29,869.65 is: 41,220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,989.88 : 67,605.96 = 29,869.65 : x
  2. Step 2: Convert to fraction form
    48,989.88/67,605.96 = 29,869.65/x
  3. Step 3: Cross multiply
    48,989.88x = 67,605.96 × 29,869.65
  4. Step 4: Simplify right side
    48,989.88x = 2,019,366,363.11
  5. Step 5: Solve for x
    x = 2,019,366,363.11/48,989.88
  6. Step 6: Final answer
    x = 41,220.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.