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Finding the Third Proportional to 2,874 and 6,231

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Solution

The third proportional to 2,874 and 6,231 is: 13,509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874 : 6,231 = 6,231 : x
  2. Step 2: Convert to fraction form
    2,874/6,231 = 6,231/x
  3. Step 3: Cross multiply
    2,874x = 6,231 × 6,231
  4. Step 4: Simplify right side
    2,874x = 38,825,361
  5. Step 5: Solve for x
    x = 38,825,361/2,874
  6. Step 6: Final answer
    x = 13,509.17

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.