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Finding the Fourth Proportional to 4,687.62, 6,468.66 and 2,799.24

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Solution

The fourth proportional to 4,687.62, 6,468.66 and 2,799.24 is: 3,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.62 : 6,468.66 = 2,799.24 : x
  2. Step 2: Convert to fraction form
    4,687.62/6,468.66 = 2,799.24/x
  3. Step 3: Cross multiply
    4,687.62x = 6,468.66 × 2,799.24
  4. Step 4: Simplify right side
    4,687.62x = 18,107,331.82
  5. Step 5: Solve for x
    x = 18,107,331.82/4,687.62
  6. Step 6: Final answer
    x = 3,862.80

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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.