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Finding the Third Proportional to 38,872 and 83,274

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Solution

The third proportional to 38,872 and 83,274 is: 178,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,872 : 83,274 = 83,274 : x
  2. Step 2: Convert to fraction form
    38,872/83,274 = 83,274/x
  3. Step 3: Cross multiply
    38,872x = 83,274 × 83,274
  4. Step 4: Simplify right side
    38,872x = 6,934,559,076
  5. Step 5: Solve for x
    x = 6,934,559,076/38,872
  6. Step 6: Final answer
    x = 178,394.71

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.