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Finding the Third Proportional to 998 and 1,801

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Solution

The third proportional to 998 and 1,801 is: 3,250.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    998 : 1,801 = 1,801 : x
  2. Step 2: Convert to fraction form
    998/1,801 = 1,801/x
  3. Step 3: Cross multiply
    998x = 1,801 × 1,801
  4. Step 4: Simplify right side
    998x = 3,243,601
  5. Step 5: Solve for x
    x = 3,243,601/998
  6. Step 6: Final answer
    x = 3,250.10

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.