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Finding the Fourth Proportional to 69,367.76, 95,716.68 and 39,554

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Solution

The fourth proportional to 69,367.76, 95,716.68 and 39,554 is: 54,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,367.76 : 95,716.68 = 39,554 : x
  2. Step 2: Convert to fraction form
    69,367.76/95,716.68 = 39,554/x
  3. Step 3: Cross multiply
    69,367.76x = 95,716.68 × 39,554
  4. Step 4: Simplify right side
    69,367.76x = 3,785,977,560.72
  5. Step 5: Solve for x
    x = 3,785,977,560.72/69,367.76
  6. Step 6: Final answer
    x = 54,578.35

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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.