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Finding the Fourth Proportional to 63,251.86, 87,327.82 and 39,413.56

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Solution

The fourth proportional to 63,251.86, 87,327.82 and 39,413.56 is: 54,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,251.86 : 87,327.82 = 39,413.56 : x
  2. Step 2: Convert to fraction form
    63,251.86/87,327.82 = 39,413.56/x
  3. Step 3: Cross multiply
    63,251.86x = 87,327.82 × 39,413.56
  4. Step 4: Simplify right side
    63,251.86x = 3,441,900,273.24
  5. Step 5: Solve for x
    x = 3,441,900,273.24/63,251.86
  6. Step 6: Final answer
    x = 54,415.80

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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.