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Finding the Fourth Proportional to 69,424.80, 104,115.65 and 25,045.76

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Solution

The fourth proportional to 69,424.80, 104,115.65 and 25,045.76 is: 37,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,424.80 : 104,115.65 = 25,045.76 : x
  2. Step 2: Convert to fraction form
    69,424.80/104,115.65 = 25,045.76/x
  3. Step 3: Cross multiply
    69,424.80x = 104,115.65 × 25,045.76
  4. Step 4: Simplify right side
    69,424.80x = 2,607,655,342.88
  5. Step 5: Solve for x
    x = 2,607,655,342.88/69,424.80
  6. Step 6: Final answer
    x = 37,560.86

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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.