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Finding the Third Proportional to 8,672 and 9,932

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Solution

The third proportional to 8,672 and 9,932 is: 11,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672 : 9,932 = 9,932 : x
  2. Step 2: Convert to fraction form
    8,672/9,932 = 9,932/x
  3. Step 3: Cross multiply
    8,672x = 9,932 × 9,932
  4. Step 4: Simplify right side
    8,672x = 98,644,624
  5. Step 5: Solve for x
    x = 98,644,624/8,672
  6. Step 6: Final answer
    x = 11,375.07

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.