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Finding the Fourth Proportional to 62,991.77, 86,928.88 and 34,697.39

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Solution

The fourth proportional to 62,991.77, 86,928.88 and 34,697.39 is: 47,882.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,991.77 : 86,928.88 = 34,697.39 : x
  2. Step 2: Convert to fraction form
    62,991.77/86,928.88 = 34,697.39/x
  3. Step 3: Cross multiply
    62,991.77x = 86,928.88 × 34,697.39
  4. Step 4: Simplify right side
    62,991.77x = 3,016,205,251.62
  5. Step 5: Solve for x
    x = 3,016,205,251.62/62,991.77
  6. Step 6: Final answer
    x = 47,882.53

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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.