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Finding the Fourth Proportional to 41,791.70, 62,687.86 and 12,230.15

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Solution

The fourth proportional to 41,791.70, 62,687.86 and 12,230.15 is: 18,345.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,791.70 : 62,687.86 = 12,230.15 : x
  2. Step 2: Convert to fraction form
    41,791.70/62,687.86 = 12,230.15/x
  3. Step 3: Cross multiply
    41,791.70x = 62,687.86 × 12,230.15
  4. Step 4: Simplify right side
    41,791.70x = 766,681,586.96
  5. Step 5: Solve for x
    x = 766,681,586.96/41,791.70
  6. Step 6: Final answer
    x = 18,345.31

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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.