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Finding the Third Proportional to 16,820 and 36,760

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Solution

The third proportional to 16,820 and 36,760 is: 80,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820 : 36,760 = 36,760 : x
  2. Step 2: Convert to fraction form
    16,820/36,760 = 36,760/x
  3. Step 3: Cross multiply
    16,820x = 36,760 × 36,760
  4. Step 4: Simplify right side
    16,820x = 1,351,297,600
  5. Step 5: Solve for x
    x = 1,351,297,600/16,820
  6. Step 6: Final answer
    x = 80,338.74

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.