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Finding the Third Proportional to 50,172 and 66,876

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Solution

The third proportional to 50,172 and 66,876 is: 89,141.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,172 : 66,876 = 66,876 : x
  2. Step 2: Convert to fraction form
    50,172/66,876 = 66,876/x
  3. Step 3: Cross multiply
    50,172x = 66,876 × 66,876
  4. Step 4: Simplify right side
    50,172x = 4,472,399,376
  5. Step 5: Solve for x
    x = 4,472,399,376/50,172
  6. Step 6: Final answer
    x = 89,141.34

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.