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Finding the Third Proportional to 13,968 and 20,200

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Solution

The third proportional to 13,968 and 20,200 is: 29,212.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968 : 20,200 = 20,200 : x
  2. Step 2: Convert to fraction form
    13,968/20,200 = 20,200/x
  3. Step 3: Cross multiply
    13,968x = 20,200 × 20,200
  4. Step 4: Simplify right side
    13,968x = 408,040,000
  5. Step 5: Solve for x
    x = 408,040,000/13,968
  6. Step 6: Final answer
    x = 29,212.49

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.