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Finding the Fourth Proportional to 63,407.33, 95,129.51 and 28,338.78

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Solution

The fourth proportional to 63,407.33, 95,129.51 and 28,338.78 is: 42,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,407.33 : 95,129.51 = 28,338.78 : x
  2. Step 2: Convert to fraction form
    63,407.33/95,129.51 = 28,338.78/x
  3. Step 3: Cross multiply
    63,407.33x = 95,129.51 × 28,338.78
  4. Step 4: Simplify right side
    63,407.33x = 2,695,854,255.40
  5. Step 5: Solve for x
    x = 2,695,854,255.40/63,407.33
  6. Step 6: Final answer
    x = 42,516.44

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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.