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Finding the Third Proportional to 7,744 and 12,624

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Solution

The third proportional to 7,744 and 12,624 is: 20,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,744 : 12,624 = 12,624 : x
  2. Step 2: Convert to fraction form
    7,744/12,624 = 12,624/x
  3. Step 3: Cross multiply
    7,744x = 12,624 × 12,624
  4. Step 4: Simplify right side
    7,744x = 159,365,376
  5. Step 5: Solve for x
    x = 159,365,376/7,744
  6. Step 6: Final answer
    x = 20,579.21

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.