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Finding the Fourth Proportional to 8,922.69, 13,385.91 and 3,375.92

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Solution

The fourth proportional to 8,922.69, 13,385.91 and 3,375.92 is: 5,064.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.69 : 13,385.91 = 3,375.92 : x
  2. Step 2: Convert to fraction form
    8,922.69/13,385.91 = 3,375.92/x
  3. Step 3: Cross multiply
    8,922.69x = 13,385.91 × 3,375.92
  4. Step 4: Simplify right side
    8,922.69x = 45,189,694.36
  5. Step 5: Solve for x
    x = 45,189,694.36/8,922.69
  6. Step 6: Final answer
    x = 5,064.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.