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Finding the Third Proportional to 32,812 and 71,368

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Solution

The third proportional to 32,812 and 71,368 is: 155,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,812 : 71,368 = 71,368 : x
  2. Step 2: Convert to fraction form
    32,812/71,368 = 71,368/x
  3. Step 3: Cross multiply
    32,812x = 71,368 × 71,368
  4. Step 4: Simplify right side
    32,812x = 5,093,391,424
  5. Step 5: Solve for x
    x = 5,093,391,424/32,812
  6. Step 6: Final answer
    x = 155,229.53

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.