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Finding the Fourth Proportional to 69,404, 95,790.48 and 39,596

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Solution

The fourth proportional to 69,404, 95,790.48 and 39,596 is: 54,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,404 : 95,790.48 = 39,596 : x
  2. Step 2: Convert to fraction form
    69,404/95,790.48 = 39,596/x
  3. Step 3: Cross multiply
    69,404x = 95,790.48 × 39,596
  4. Step 4: Simplify right side
    69,404x = 3,792,919,846.08
  5. Step 5: Solve for x
    x = 3,792,919,846.08/69,404
  6. Step 6: Final answer
    x = 54,649.87

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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.