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Finding the Third Proportional to 2,746 and 3,981

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Solution

The third proportional to 2,746 and 3,981 is: 5,771.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746 : 3,981 = 3,981 : x
  2. Step 2: Convert to fraction form
    2,746/3,981 = 3,981/x
  3. Step 3: Cross multiply
    2,746x = 3,981 × 3,981
  4. Step 4: Simplify right side
    2,746x = 15,848,361
  5. Step 5: Solve for x
    x = 15,848,361/2,746
  6. Step 6: Final answer
    x = 5,771.44

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.