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Finding the Fourth Proportional to 8,327.94, 12,481.11 and 3,391.86

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Solution

The fourth proportional to 8,327.94, 12,481.11 and 3,391.86 is: 5,083.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.94 : 12,481.11 = 3,391.86 : x
  2. Step 2: Convert to fraction form
    8,327.94/12,481.11 = 3,391.86/x
  3. Step 3: Cross multiply
    8,327.94x = 12,481.11 × 3,391.86
  4. Step 4: Simplify right side
    8,327.94x = 42,334,177.76
  5. Step 5: Solve for x
    x = 42,334,177.76/8,327.94
  6. Step 6: Final answer
    x = 5,083.39

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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.