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Finding the Fourth Proportional to 62,463.89, 86,228.31 and 39,833.30

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Solution

The fourth proportional to 62,463.89, 86,228.31 and 39,833.30 is: 54,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,463.89 : 86,228.31 = 39,833.30 : x
  2. Step 2: Convert to fraction form
    62,463.89/86,228.31 = 39,833.30/x
  3. Step 3: Cross multiply
    62,463.89x = 86,228.31 × 39,833.30
  4. Step 4: Simplify right side
    62,463.89x = 3,434,758,505.67
  5. Step 5: Solve for x
    x = 3,434,758,505.67/62,463.89
  6. Step 6: Final answer
    x = 54,987.90

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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.