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Finding the Third Proportional to 2,876 and 3,791

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Solution

The third proportional to 2,876 and 3,791 is: 4,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876 : 3,791 = 3,791 : x
  2. Step 2: Convert to fraction form
    2,876/3,791 = 3,791/x
  3. Step 3: Cross multiply
    2,876x = 3,791 × 3,791
  4. Step 4: Simplify right side
    2,876x = 14,371,681
  5. Step 5: Solve for x
    x = 14,371,681/2,876
  6. Step 6: Final answer
    x = 4,997.11

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.