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Finding the Third Proportional to 13,072.50 and 20,001

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Solution

The third proportional to 13,072.50 and 20,001 is: 30,601.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.50 : 20,001 = 20,001 : x
  2. Step 2: Convert to fraction form
    13,072.50/20,001 = 20,001/x
  3. Step 3: Cross multiply
    13,072.50x = 20,001 × 20,001
  4. Step 4: Simplify right side
    13,072.50x = 400,040,001
  5. Step 5: Solve for x
    x = 400,040,001/13,072.50
  6. Step 6: Final answer
    x = 30,601.64

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.