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Finding the Fourth Proportional to 63,735.86, 87,919.62 and 38,235.44

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Solution

The fourth proportional to 63,735.86, 87,919.62 and 38,235.44 is: 52,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,735.86 : 87,919.62 = 38,235.44 : x
  2. Step 2: Convert to fraction form
    63,735.86/87,919.62 = 38,235.44/x
  3. Step 3: Cross multiply
    63,735.86x = 87,919.62 × 38,235.44
  4. Step 4: Simplify right side
    63,735.86x = 3,361,645,355.33
  5. Step 5: Solve for x
    x = 3,361,645,355.33/63,735.86
  6. Step 6: Final answer
    x = 52,743.39

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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.