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Finding the Third Proportional to 7,418 and 9,624

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Solution

The third proportional to 7,418 and 9,624 is: 12,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418 : 9,624 = 9,624 : x
  2. Step 2: Convert to fraction form
    7,418/9,624 = 9,624/x
  3. Step 3: Cross multiply
    7,418x = 9,624 × 9,624
  4. Step 4: Simplify right side
    7,418x = 92,621,376
  5. Step 5: Solve for x
    x = 92,621,376/7,418
  6. Step 6: Final answer
    x = 12,486.03

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.