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Finding the Third Proportional to 5,491.13 and 9,186.75

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Solution

The third proportional to 5,491.13 and 9,186.75 is: 15,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.13 : 9,186.75 = 9,186.75 : x
  2. Step 2: Convert to fraction form
    5,491.13/9,186.75 = 9,186.75/x
  3. Step 3: Cross multiply
    5,491.13x = 9,186.75 × 9,186.75
  4. Step 4: Simplify right side
    5,491.13x = 84,396,375.56
  5. Step 5: Solve for x
    x = 84,396,375.56/5,491.13
  6. Step 6: Final answer
    x = 15,369.60

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.