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Finding the Third Proportional to 3,554 and 7,876

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Solution

The third proportional to 3,554 and 7,876 is: 17,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554 : 7,876 = 7,876 : x
  2. Step 2: Convert to fraction form
    3,554/7,876 = 7,876/x
  3. Step 3: Cross multiply
    3,554x = 7,876 × 7,876
  4. Step 4: Simplify right side
    3,554x = 62,031,376
  5. Step 5: Solve for x
    x = 62,031,376/3,554
  6. Step 6: Final answer
    x = 17,453.96

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.