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Finding the Fourth Proportional to 62,663.92, 86,480.16 and 41,405.92

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Solution

The fourth proportional to 62,663.92, 86,480.16 and 41,405.92 is: 57,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,663.92 : 86,480.16 = 41,405.92 : x
  2. Step 2: Convert to fraction form
    62,663.92/86,480.16 = 41,405.92/x
  3. Step 3: Cross multiply
    62,663.92x = 86,480.16 × 41,405.92
  4. Step 4: Simplify right side
    62,663.92x = 3,580,790,586.55
  5. Step 5: Solve for x
    x = 3,580,790,586.55/62,663.92
  6. Step 6: Final answer
    x = 57,142.78

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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.