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Finding the Third Proportional to 3,142.13 and 4,789.13

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Solution

The third proportional to 3,142.13 and 4,789.13 is: 7,299.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.13 : 4,789.13 = 4,789.13 : x
  2. Step 2: Convert to fraction form
    3,142.13/4,789.13 = 4,789.13/x
  3. Step 3: Cross multiply
    3,142.13x = 4,789.13 × 4,789.13
  4. Step 4: Simplify right side
    3,142.13x = 22,935,718.27
  5. Step 5: Solve for x
    x = 22,935,718.27/3,142.13
  6. Step 6: Final answer
    x = 7,299.43

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.