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Finding the Fourth Proportional to 69,907.88, 96,472.38 and 38,076.68

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Solution

The fourth proportional to 69,907.88, 96,472.38 and 38,076.68 is: 52,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,907.88 : 96,472.38 = 38,076.68 : x
  2. Step 2: Convert to fraction form
    69,907.88/96,472.38 = 38,076.68/x
  3. Step 3: Cross multiply
    69,907.88x = 96,472.38 × 38,076.68
  4. Step 4: Simplify right side
    69,907.88x = 3,673,347,942.10
  5. Step 5: Solve for x
    x = 3,673,347,942.10/69,907.88
  6. Step 6: Final answer
    x = 52,545.55

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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.