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Finding the Third Proportional to 18,792 and 29,372

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Solution

The third proportional to 18,792 and 29,372 is: 45,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792 : 29,372 = 29,372 : x
  2. Step 2: Convert to fraction form
    18,792/29,372 = 29,372/x
  3. Step 3: Cross multiply
    18,792x = 29,372 × 29,372
  4. Step 4: Simplify right side
    18,792x = 862,714,384
  5. Step 5: Solve for x
    x = 862,714,384/18,792
  6. Step 6: Final answer
    x = 45,908.60

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.