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Finding the Third Proportional to 7,182 and 11,532.38

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Solution

The third proportional to 7,182 and 11,532.38 is: 18,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182 : 11,532.38 = 11,532.38 : x
  2. Step 2: Convert to fraction form
    7,182/11,532.38 = 11,532.38/x
  3. Step 3: Cross multiply
    7,182x = 11,532.38 × 11,532.38
  4. Step 4: Simplify right side
    7,182x = 132,995,673.14
  5. Step 5: Solve for x
    x = 132,995,673.14/7,182
  6. Step 6: Final answer
    x = 18,517.92

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.