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Finding the Third Proportional to 10,691 and 16,447

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Solution

The third proportional to 10,691 and 16,447 is: 25,302.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691 : 16,447 = 16,447 : x
  2. Step 2: Convert to fraction form
    10,691/16,447 = 16,447/x
  3. Step 3: Cross multiply
    10,691x = 16,447 × 16,447
  4. Step 4: Simplify right side
    10,691x = 270,503,809
  5. Step 5: Solve for x
    x = 270,503,809/10,691
  6. Step 6: Final answer
    x = 25,302.01

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.