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Finding the Third Proportional to 3,149 and 4,874

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Solution

The third proportional to 3,149 and 4,874 is: 7,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149 : 4,874 = 4,874 : x
  2. Step 2: Convert to fraction form
    3,149/4,874 = 4,874/x
  3. Step 3: Cross multiply
    3,149x = 4,874 × 4,874
  4. Step 4: Simplify right side
    3,149x = 23,755,876
  5. Step 5: Solve for x
    x = 23,755,876/3,149
  6. Step 6: Final answer
    x = 7,543.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.