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Finding the Fourth Proportional to 63,608.87, 87,781.25 and 35,314.85

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Solution

The fourth proportional to 63,608.87, 87,781.25 and 35,314.85 is: 48,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,608.87 : 87,781.25 = 35,314.85 : x
  2. Step 2: Convert to fraction form
    63,608.87/87,781.25 = 35,314.85/x
  3. Step 3: Cross multiply
    63,608.87x = 87,781.25 × 35,314.85
  4. Step 4: Simplify right side
    63,608.87x = 3,099,981,676.56
  5. Step 5: Solve for x
    x = 3,099,981,676.56/63,608.87
  6. Step 6: Final answer
    x = 48,735.05

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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.