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Finding the Third Proportional to 11,072 and 16,691

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Solution

The third proportional to 11,072 and 16,691 is: 25,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072 : 16,691 = 16,691 : x
  2. Step 2: Convert to fraction form
    11,072/16,691 = 16,691/x
  3. Step 3: Cross multiply
    11,072x = 16,691 × 16,691
  4. Step 4: Simplify right side
    11,072x = 278,589,481
  5. Step 5: Solve for x
    x = 278,589,481/11,072
  6. Step 6: Final answer
    x = 25,161.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.