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Finding the Fourth Proportional to 48,938.50, 67,540.89 and 29,066.50

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Solution

The fourth proportional to 48,938.50, 67,540.89 and 29,066.50 is: 40,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,938.50 : 67,540.89 = 29,066.50 : x
  2. Step 2: Convert to fraction form
    48,938.50/67,540.89 = 29,066.50/x
  3. Step 3: Cross multiply
    48,938.50x = 67,540.89 × 29,066.50
  4. Step 4: Simplify right side
    48,938.50x = 1,963,177,279.19
  5. Step 5: Solve for x
    x = 1,963,177,279.19/48,938.50
  6. Step 6: Final answer
    x = 40,115.19

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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.