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Finding the Third Proportional to 5,930 and 12,872

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Solution

The third proportional to 5,930 and 12,872 is: 27,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,930 : 12,872 = 12,872 : x
  2. Step 2: Convert to fraction form
    5,930/12,872 = 12,872/x
  3. Step 3: Cross multiply
    5,930x = 12,872 × 12,872
  4. Step 4: Simplify right side
    5,930x = 165,688,384
  5. Step 5: Solve for x
    x = 165,688,384/5,930
  6. Step 6: Final answer
    x = 27,940.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.