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Finding the Third Proportional to 18,110 and 38,200

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Solution

The third proportional to 18,110 and 38,200 is: 80,576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110 : 38,200 = 38,200 : x
  2. Step 2: Convert to fraction form
    18,110/38,200 = 38,200/x
  3. Step 3: Cross multiply
    18,110x = 38,200 × 38,200
  4. Step 4: Simplify right side
    18,110x = 1,459,240,000
  5. Step 5: Solve for x
    x = 1,459,240,000/18,110
  6. Step 6: Final answer
    x = 80,576.48

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.