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Finding the Third Proportional to 20,123 and 43,168

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Solution

The third proportional to 20,123 and 43,168 is: 92,604.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123 : 43,168 = 43,168 : x
  2. Step 2: Convert to fraction form
    20,123/43,168 = 43,168/x
  3. Step 3: Cross multiply
    20,123x = 43,168 × 43,168
  4. Step 4: Simplify right side
    20,123x = 1,863,476,224
  5. Step 5: Solve for x
    x = 1,863,476,224/20,123
  6. Step 6: Final answer
    x = 92,604.29

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.