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Finding the Third Proportional to 8,624 and 9,901

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Solution

The third proportional to 8,624 and 9,901 is: 11,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624 : 9,901 = 9,901 : x
  2. Step 2: Convert to fraction form
    8,624/9,901 = 9,901/x
  3. Step 3: Cross multiply
    8,624x = 9,901 × 9,901
  4. Step 4: Simplify right side
    8,624x = 98,029,801
  5. Step 5: Solve for x
    x = 98,029,801/8,624
  6. Step 6: Final answer
    x = 11,367.09

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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.