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Finding the Third Proportional to 13,325 and 20,021

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Solution

The third proportional to 13,325 and 20,021 is: 30,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325 : 20,021 = 20,021 : x
  2. Step 2: Convert to fraction form
    13,325/20,021 = 20,021/x
  3. Step 3: Cross multiply
    13,325x = 20,021 × 20,021
  4. Step 4: Simplify right side
    13,325x = 400,840,441
  5. Step 5: Solve for x
    x = 400,840,441/13,325
  6. Step 6: Final answer
    x = 30,081.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.