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Finding the Third Proportional to 2,355 and 3,874

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Solution

The third proportional to 2,355 and 3,874 is: 6,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355 : 3,874 = 3,874 : x
  2. Step 2: Convert to fraction form
    2,355/3,874 = 3,874/x
  3. Step 3: Cross multiply
    2,355x = 3,874 × 3,874
  4. Step 4: Simplify right side
    2,355x = 15,007,876
  5. Step 5: Solve for x
    x = 15,007,876/2,355
  6. Step 6: Final answer
    x = 6,372.77

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.