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Finding the Fourth Proportional to 3,791.16, 5,657.10 and 3,002.22

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Solution

The fourth proportional to 3,791.16, 5,657.10 and 3,002.22 is: 4,479.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.16 : 5,657.10 = 3,002.22 : x
  2. Step 2: Convert to fraction form
    3,791.16/5,657.10 = 3,002.22/x
  3. Step 3: Cross multiply
    3,791.16x = 5,657.10 × 3,002.22
  4. Step 4: Simplify right side
    3,791.16x = 16,983,858.76
  5. Step 5: Solve for x
    x = 16,983,858.76/3,791.16
  6. Step 6: Final answer
    x = 4,479.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.