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Finding the Fourth Proportional to 2,462.78, 3,399.90 and 1,801.02

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Solution

The fourth proportional to 2,462.78, 3,399.90 and 1,801.02 is: 2,486.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,462.78 : 3,399.90 = 1,801.02 : x
  2. Step 2: Convert to fraction form
    2,462.78/3,399.90 = 1,801.02/x
  3. Step 3: Cross multiply
    2,462.78x = 3,399.90 × 1,801.02
  4. Step 4: Simplify right side
    2,462.78x = 6,123,287.90
  5. Step 5: Solve for x
    x = 6,123,287.90/2,462.78
  6. Step 6: Final answer
    x = 2,486.33

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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.