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Finding the Third Proportional to 10,874 and 15,519

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Solution

The third proportional to 10,874 and 15,519 is: 22,148.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874 : 15,519 = 15,519 : x
  2. Step 2: Convert to fraction form
    10,874/15,519 = 15,519/x
  3. Step 3: Cross multiply
    10,874x = 15,519 × 15,519
  4. Step 4: Simplify right side
    10,874x = 240,839,361
  5. Step 5: Solve for x
    x = 240,839,361/10,874
  6. Step 6: Final answer
    x = 22,148.18

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.