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Finding the Third Proportional to 3,613 and 5,493

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Solution

The third proportional to 3,613 and 5,493 is: 8,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613 : 5,493 = 5,493 : x
  2. Step 2: Convert to fraction form
    3,613/5,493 = 5,493/x
  3. Step 3: Cross multiply
    3,613x = 5,493 × 5,493
  4. Step 4: Simplify right side
    3,613x = 30,173,049
  5. Step 5: Solve for x
    x = 30,173,049/3,613
  6. Step 6: Final answer
    x = 8,351.25

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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.