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Finding the Third Proportional to 20,792 and 29,436

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Solution

The third proportional to 20,792 and 29,436 is: 41,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792 : 29,436 = 29,436 : x
  2. Step 2: Convert to fraction form
    20,792/29,436 = 29,436/x
  3. Step 3: Cross multiply
    20,792x = 29,436 × 29,436
  4. Step 4: Simplify right side
    20,792x = 866,478,096
  5. Step 5: Solve for x
    x = 866,478,096/20,792
  6. Step 6: Final answer
    x = 41,673.63

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.