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Finding the Fourth Proportional to 3,676.11, 5,073.08 and 2,020.11

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Solution

The fourth proportional to 3,676.11, 5,073.08 and 2,020.11 is: 2,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.11 : 5,073.08 = 2,020.11 : x
  2. Step 2: Convert to fraction form
    3,676.11/5,073.08 = 2,020.11/x
  3. Step 3: Cross multiply
    3,676.11x = 5,073.08 × 2,020.11
  4. Step 4: Simplify right side
    3,676.11x = 10,248,169.54
  5. Step 5: Solve for x
    x = 10,248,169.54/3,676.11
  6. Step 6: Final answer
    x = 2,787.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.