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Finding the Fourth Proportional to 2,654.88, 3,982.12 and 900.04

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Solution

The fourth proportional to 2,654.88, 3,982.12 and 900.04 is: 1,349.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.88 : 3,982.12 = 900.04 : x
  2. Step 2: Convert to fraction form
    2,654.88/3,982.12 = 900.04/x
  3. Step 3: Cross multiply
    2,654.88x = 3,982.12 × 900.04
  4. Step 4: Simplify right side
    2,654.88x = 3,584,067.28
  5. Step 5: Solve for x
    x = 3,584,067.28/2,654.88
  6. Step 6: Final answer
    x = 1,349.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.