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Finding the Third Proportional to 7,624 and 9,868

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Solution

The third proportional to 7,624 and 9,868 is: 12,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,624 : 9,868 = 9,868 : x
  2. Step 2: Convert to fraction form
    7,624/9,868 = 9,868/x
  3. Step 3: Cross multiply
    7,624x = 9,868 × 9,868
  4. Step 4: Simplify right side
    7,624x = 97,377,424
  5. Step 5: Solve for x
    x = 97,377,424/7,624
  6. Step 6: Final answer
    x = 12,772.48

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.