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Finding the Fourth Proportional to 47,331.96, 71,019 and 25,139.94

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Solution

The fourth proportional to 47,331.96, 71,019 and 25,139.94 is: 37,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,331.96 : 71,019 = 25,139.94 : x
  2. Step 2: Convert to fraction form
    47,331.96/71,019 = 25,139.94/x
  3. Step 3: Cross multiply
    47,331.96x = 71,019 × 25,139.94
  4. Step 4: Simplify right side
    47,331.96x = 1,785,413,398.86
  5. Step 5: Solve for x
    x = 1,785,413,398.86/47,331.96
  6. Step 6: Final answer
    x = 37,721.10

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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.