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Finding the Third Proportional to 18,101.25 and 20,652.75

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Solution

The third proportional to 18,101.25 and 20,652.75 is: 23,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.25 : 20,652.75 = 20,652.75 : x
  2. Step 2: Convert to fraction form
    18,101.25/20,652.75 = 20,652.75/x
  3. Step 3: Cross multiply
    18,101.25x = 20,652.75 × 20,652.75
  4. Step 4: Simplify right side
    18,101.25x = 426,536,082.56
  5. Step 5: Solve for x
    x = 426,536,082.56/18,101.25
  6. Step 6: Final answer
    x = 23,563.90

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.