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Finding the Fourth Proportional to 63,402.31, 87,494.57 and 34,330.54

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Solution

The fourth proportional to 63,402.31, 87,494.57 and 34,330.54 is: 47,375.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,402.31 : 87,494.57 = 34,330.54 : x
  2. Step 2: Convert to fraction form
    63,402.31/87,494.57 = 34,330.54/x
  3. Step 3: Cross multiply
    63,402.31x = 87,494.57 × 34,330.54
  4. Step 4: Simplify right side
    63,402.31x = 3,003,735,882.25
  5. Step 5: Solve for x
    x = 3,003,735,882.25/63,402.31
  6. Step 6: Final answer
    x = 47,375.81

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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.