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Finding the Fourth Proportional to 41,008.78, 61,288.47 and 29,938.78

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Solution

The fourth proportional to 41,008.78, 61,288.47 and 29,938.78 is: 44,744.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,008.78 : 61,288.47 = 29,938.78 : x
  2. Step 2: Convert to fraction form
    41,008.78/61,288.47 = 29,938.78/x
  3. Step 3: Cross multiply
    41,008.78x = 61,288.47 × 29,938.78
  4. Step 4: Simplify right side
    41,008.78x = 1,834,902,019.87
  5. Step 5: Solve for x
    x = 1,834,902,019.87/41,008.78
  6. Step 6: Final answer
    x = 44,744.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.