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Finding the Third Proportional to 3,351.75 and 5,489.25

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Solution

The third proportional to 3,351.75 and 5,489.25 is: 8,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.75 : 5,489.25 = 5,489.25 : x
  2. Step 2: Convert to fraction form
    3,351.75/5,489.25 = 5,489.25/x
  3. Step 3: Cross multiply
    3,351.75x = 5,489.25 × 5,489.25
  4. Step 4: Simplify right side
    3,351.75x = 30,131,865.56
  5. Step 5: Solve for x
    x = 30,131,865.56/3,351.75
  6. Step 6: Final answer
    x = 8,989.89

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.