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Finding the Fourth Proportional to 62,712.30, 86,539.92 and 35,857.74

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Solution

The fourth proportional to 62,712.30, 86,539.92 and 35,857.74 is: 49,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,712.30 : 86,539.92 = 35,857.74 : x
  2. Step 2: Convert to fraction form
    62,712.30/86,539.92 = 35,857.74/x
  3. Step 3: Cross multiply
    62,712.30x = 86,539.92 × 35,857.74
  4. Step 4: Simplify right side
    62,712.30x = 3,103,125,950.98
  5. Step 5: Solve for x
    x = 3,103,125,950.98/62,712.30
  6. Step 6: Final answer
    x = 49,481.93

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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.