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Finding the Third Proportional to 13,916 and 20,450

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Solution

The third proportional to 13,916 and 20,450 is: 30,051.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916 : 20,450 = 20,450 : x
  2. Step 2: Convert to fraction form
    13,916/20,450 = 20,450/x
  3. Step 3: Cross multiply
    13,916x = 20,450 × 20,450
  4. Step 4: Simplify right side
    13,916x = 418,202,500
  5. Step 5: Solve for x
    x = 418,202,500/13,916
  6. Step 6: Final answer
    x = 30,051.92

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.