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Finding the Third Proportional to 4,198.69 and 9,174.47

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Solution

The third proportional to 4,198.69 and 9,174.47 is: 20,046.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,198.69 : 9,174.47 = 9,174.47 : x
  2. Step 2: Convert to fraction form
    4,198.69/9,174.47 = 9,174.47/x
  3. Step 3: Cross multiply
    4,198.69x = 9,174.47 × 9,174.47
  4. Step 4: Simplify right side
    4,198.69x = 84,170,876.84
  5. Step 5: Solve for x
    x = 84,170,876.84/4,198.69
  6. Step 6: Final answer
    x = 20,046.95

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.