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Finding the Third Proportional to 18,660 and 41,011

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Solution

The third proportional to 18,660 and 41,011 is: 90,134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660 : 41,011 = 41,011 : x
  2. Step 2: Convert to fraction form
    18,660/41,011 = 41,011/x
  3. Step 3: Cross multiply
    18,660x = 41,011 × 41,011
  4. Step 4: Simplify right side
    18,660x = 1,681,902,121
  5. Step 5: Solve for x
    x = 1,681,902,121/18,660
  6. Step 6: Final answer
    x = 90,134.09

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.