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Finding the Third Proportional to 11,817 and 25,581

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Solution

The third proportional to 11,817 and 25,581 is: 55,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817 : 25,581 = 25,581 : x
  2. Step 2: Convert to fraction form
    11,817/25,581 = 25,581/x
  3. Step 3: Cross multiply
    11,817x = 25,581 × 25,581
  4. Step 4: Simplify right side
    11,817x = 654,387,561
  5. Step 5: Solve for x
    x = 654,387,561/11,817
  6. Step 6: Final answer
    x = 55,376.79

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.