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Finding the Third Proportional to 50,872 and 80,340

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Solution

The third proportional to 50,872 and 80,340 is: 126,877.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,872 : 80,340 = 80,340 : x
  2. Step 2: Convert to fraction form
    50,872/80,340 = 80,340/x
  3. Step 3: Cross multiply
    50,872x = 80,340 × 80,340
  4. Step 4: Simplify right side
    50,872x = 6,454,515,600
  5. Step 5: Solve for x
    x = 6,454,515,600/50,872
  6. Step 6: Final answer
    x = 126,877.57

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.