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Finding the Fourth Proportional to 69,934.36, 96,545.10 and 47,392.48

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Solution

The fourth proportional to 69,934.36, 96,545.10 and 47,392.48 is: 65,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,934.36 : 96,545.10 = 47,392.48 : x
  2. Step 2: Convert to fraction form
    69,934.36/96,545.10 = 47,392.48/x
  3. Step 3: Cross multiply
    69,934.36x = 96,545.10 × 47,392.48
  4. Step 4: Simplify right side
    69,934.36x = 4,575,511,720.85
  5. Step 5: Solve for x
    x = 4,575,511,720.85/69,934.36
  6. Step 6: Final answer
    x = 65,425.80

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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.