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Finding the Third Proportional to 2,549 and 3,872

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Solution

The third proportional to 2,549 and 3,872 is: 5,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549 : 3,872 = 3,872 : x
  2. Step 2: Convert to fraction form
    2,549/3,872 = 3,872/x
  3. Step 3: Cross multiply
    2,549x = 3,872 × 3,872
  4. Step 4: Simplify right side
    2,549x = 14,992,384
  5. Step 5: Solve for x
    x = 14,992,384/2,549
  6. Step 6: Final answer
    x = 5,881.67

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.