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Finding the Third Proportional to 4,192 and 8,792

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Solution

The third proportional to 4,192 and 8,792 is: 18,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192 : 8,792 = 8,792 : x
  2. Step 2: Convert to fraction form
    4,192/8,792 = 8,792/x
  3. Step 3: Cross multiply
    4,192x = 8,792 × 8,792
  4. Step 4: Simplify right side
    4,192x = 77,299,264
  5. Step 5: Solve for x
    x = 77,299,264/4,192
  6. Step 6: Final answer
    x = 18,439.71

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.