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Finding the Fourth Proportional to 39,558.86, 59,325.89 and 11,480.85

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Solution

The fourth proportional to 39,558.86, 59,325.89 and 11,480.85 is: 17,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,558.86 : 59,325.89 = 11,480.85 : x
  2. Step 2: Convert to fraction form
    39,558.86/59,325.89 = 11,480.85/x
  3. Step 3: Cross multiply
    39,558.86x = 59,325.89 × 11,480.85
  4. Step 4: Simplify right side
    39,558.86x = 681,111,644.21
  5. Step 5: Solve for x
    x = 681,111,644.21/39,558.86
  6. Step 6: Final answer
    x = 17,217.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.