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Finding the Fourth Proportional to 62,855.73, 86,716.31 and 35,983.85

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Solution

The fourth proportional to 62,855.73, 86,716.31 and 35,983.85 is: 49,643.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,855.73 : 86,716.31 = 35,983.85 : x
  2. Step 2: Convert to fraction form
    62,855.73/86,716.31 = 35,983.85/x
  3. Step 3: Cross multiply
    62,855.73x = 86,716.31 × 35,983.85
  4. Step 4: Simplify right side
    62,855.73x = 3,120,386,078.09
  5. Step 5: Solve for x
    x = 3,120,386,078.09/62,855.73
  6. Step 6: Final answer
    x = 49,643.62

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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.