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Finding the Fourth Proportional to 69,778.80, 104,605.85 and 25,374.27

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Solution

The fourth proportional to 69,778.80, 104,605.85 and 25,374.27 is: 38,038.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,778.80 : 104,605.85 = 25,374.27 : x
  2. Step 2: Convert to fraction form
    69,778.80/104,605.85 = 25,374.27/x
  3. Step 3: Cross multiply
    69,778.80x = 104,605.85 × 25,374.27
  4. Step 4: Simplify right side
    69,778.80x = 2,654,296,954.61
  5. Step 5: Solve for x
    x = 2,654,296,954.61/69,778.80
  6. Step 6: Final answer
    x = 38,038.73

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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.