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Finding the Fourth Proportional to 62,710.81, 86,542.38 and 35,855.83

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Solution

The fourth proportional to 62,710.81, 86,542.38 and 35,855.83 is: 49,481.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,710.81 : 86,542.38 = 35,855.83 : x
  2. Step 2: Convert to fraction form
    62,710.81/86,542.38 = 35,855.83/x
  3. Step 3: Cross multiply
    62,710.81x = 86,542.38 × 35,855.83
  4. Step 4: Simplify right side
    62,710.81x = 3,103,048,865.08
  5. Step 5: Solve for x
    x = 3,103,048,865.08/62,710.81
  6. Step 6: Final answer
    x = 49,481.88

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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.