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Finding the Third Proportional to 3,379 and 7,261

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Solution

The third proportional to 3,379 and 7,261 is: 15,602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379 : 7,261 = 7,261 : x
  2. Step 2: Convert to fraction form
    3,379/7,261 = 7,261/x
  3. Step 3: Cross multiply
    3,379x = 7,261 × 7,261
  4. Step 4: Simplify right side
    3,379x = 52,722,121
  5. Step 5: Solve for x
    x = 52,722,121/3,379
  6. Step 6: Final answer
    x = 15,602.88

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.