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Finding the Fourth Proportional to 69,843.34, 96,385.98 and 39,629.94

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Solution

The fourth proportional to 69,843.34, 96,385.98 and 39,629.94 is: 54,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,843.34 : 96,385.98 = 39,629.94 : x
  2. Step 2: Convert to fraction form
    69,843.34/96,385.98 = 39,629.94/x
  3. Step 3: Cross multiply
    69,843.34x = 96,385.98 × 39,629.94
  4. Step 4: Simplify right side
    69,843.34x = 3,819,770,604.24
  5. Step 5: Solve for x
    x = 3,819,770,604.24/69,843.34
  6. Step 6: Final answer
    x = 54,690.55

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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.