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Finding the Fourth Proportional to 63,761.92, 87,991.96 and 35,467.61

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Solution

The fourth proportional to 63,761.92, 87,991.96 and 35,467.61 is: 48,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,761.92 : 87,991.96 = 35,467.61 : x
  2. Step 2: Convert to fraction form
    63,761.92/87,991.96 = 35,467.61/x
  3. Step 3: Cross multiply
    63,761.92x = 87,991.96 × 35,467.61
  4. Step 4: Simplify right side
    63,761.92x = 3,120,864,520.42
  5. Step 5: Solve for x
    x = 3,120,864,520.42/63,761.92
  6. Step 6: Final answer
    x = 48,945.59

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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.