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Finding the Fourth Proportional to 3,659.78, 5,476.92 and 2,993.96

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Solution

The fourth proportional to 3,659.78, 5,476.92 and 2,993.96 is: 4,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.78 : 5,476.92 = 2,993.96 : x
  2. Step 2: Convert to fraction form
    3,659.78/5,476.92 = 2,993.96/x
  3. Step 3: Cross multiply
    3,659.78x = 5,476.92 × 2,993.96
  4. Step 4: Simplify right side
    3,659.78x = 16,397,681.87
  5. Step 5: Solve for x
    x = 16,397,681.87/3,659.78
  6. Step 6: Final answer
    x = 4,480.51

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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.