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Finding the Third Proportional to 18,101.25 and 22,110.75

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Solution

The third proportional to 18,101.25 and 22,110.75 is: 27,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.25 : 22,110.75 = 22,110.75 : x
  2. Step 2: Convert to fraction form
    18,101.25/22,110.75 = 22,110.75/x
  3. Step 3: Cross multiply
    18,101.25x = 22,110.75 × 22,110.75
  4. Step 4: Simplify right side
    18,101.25x = 488,885,265.56
  5. Step 5: Solve for x
    x = 488,885,265.56/18,101.25
  6. Step 6: Final answer
    x = 27,008.37

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.