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Finding the Third Proportional to 13,968 and 18,112

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Solution

The third proportional to 13,968 and 18,112 is: 23,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968 : 18,112 = 18,112 : x
  2. Step 2: Convert to fraction form
    13,968/18,112 = 18,112/x
  3. Step 3: Cross multiply
    13,968x = 18,112 × 18,112
  4. Step 4: Simplify right side
    13,968x = 328,044,544
  5. Step 5: Solve for x
    x = 328,044,544/13,968
  6. Step 6: Final answer
    x = 23,485.43

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.