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Finding the Fourth Proportional to 62,234.80, 93,352.20 and 20,681.80

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Solution

The fourth proportional to 62,234.80, 93,352.20 and 20,681.80 is: 31,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,234.80 : 93,352.20 = 20,681.80 : x
  2. Step 2: Convert to fraction form
    62,234.80/93,352.20 = 20,681.80/x
  3. Step 3: Cross multiply
    62,234.80x = 93,352.20 × 20,681.80
  4. Step 4: Simplify right side
    62,234.80x = 1,930,691,529.96
  5. Step 5: Solve for x
    x = 1,930,691,529.96/62,234.80
  6. Step 6: Final answer
    x = 31,022.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.