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Finding the Third Proportional to 38,234.25 and 82,620

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Solution

The third proportional to 38,234.25 and 82,620 is: 178,532.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,234.25 : 82,620 = 82,620 : x
  2. Step 2: Convert to fraction form
    38,234.25/82,620 = 82,620/x
  3. Step 3: Cross multiply
    38,234.25x = 82,620 × 82,620
  4. Step 4: Simplify right side
    38,234.25x = 6,826,064,400
  5. Step 5: Solve for x
    x = 6,826,064,400/38,234.25
  6. Step 6: Final answer
    x = 178,532.71

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.