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Finding the Third Proportional to 3,115.13 and 3,327.75

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Solution

The third proportional to 3,115.13 and 3,327.75 is: 3,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.13 : 3,327.75 = 3,327.75 : x
  2. Step 2: Convert to fraction form
    3,115.13/3,327.75 = 3,327.75/x
  3. Step 3: Cross multiply
    3,115.13x = 3,327.75 × 3,327.75
  4. Step 4: Simplify right side
    3,115.13x = 11,073,920.06
  5. Step 5: Solve for x
    x = 11,073,920.06/3,115.13
  6. Step 6: Final answer
    x = 3,554.89

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.