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Finding the Fourth Proportional to 69,308.62, 95,645.78 and 39,093.85

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Solution

The fourth proportional to 69,308.62, 95,645.78 and 39,093.85 is: 53,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,308.62 : 95,645.78 = 39,093.85 : x
  2. Step 2: Convert to fraction form
    69,308.62/95,645.78 = 39,093.85/x
  3. Step 3: Cross multiply
    69,308.62x = 95,645.78 × 39,093.85
  4. Step 4: Simplify right side
    69,308.62x = 3,739,161,309.14
  5. Step 5: Solve for x
    x = 3,739,161,309.14/69,308.62
  6. Step 6: Final answer
    x = 53,949.44

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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.