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Finding the Fourth Proportional to 69,320.39, 103,987.87 and 22,576.91

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Solution

The fourth proportional to 69,320.39, 103,987.87 and 22,576.91 is: 33,867.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,320.39 : 103,987.87 = 22,576.91 : x
  2. Step 2: Convert to fraction form
    69,320.39/103,987.87 = 22,576.91/x
  3. Step 3: Cross multiply
    69,320.39x = 103,987.87 × 22,576.91
  4. Step 4: Simplify right side
    69,320.39x = 2,347,724,205.70
  5. Step 5: Solve for x
    x = 2,347,724,205.70/69,320.39
  6. Step 6: Final answer
    x = 33,867.73

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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.