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Finding the Third Proportional to 3,979.13 and 6,169.92

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Solution

The third proportional to 3,979.13 and 6,169.92 is: 9,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.13 : 6,169.92 = 6,169.92 : x
  2. Step 2: Convert to fraction form
    3,979.13/6,169.92 = 6,169.92/x
  3. Step 3: Cross multiply
    3,979.13x = 6,169.92 × 6,169.92
  4. Step 4: Simplify right side
    3,979.13x = 38,067,935.94
  5. Step 5: Solve for x
    x = 38,067,935.94/3,979.13
  6. Step 6: Final answer
    x = 9,566.91

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.