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Finding the Third Proportional to 5,891 and 12,387

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Solution

The third proportional to 5,891 and 12,387 is: 26,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891 : 12,387 = 12,387 : x
  2. Step 2: Convert to fraction form
    5,891/12,387 = 12,387/x
  3. Step 3: Cross multiply
    5,891x = 12,387 × 12,387
  4. Step 4: Simplify right side
    5,891x = 153,437,769
  5. Step 5: Solve for x
    x = 153,437,769/5,891
  6. Step 6: Final answer
    x = 26,046.13

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.