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Finding the Fourth Proportional to 3,791.94, 5,684.22 and 1,943.91

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Solution

The fourth proportional to 3,791.94, 5,684.22 and 1,943.91 is: 2,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.94 : 5,684.22 = 1,943.91 : x
  2. Step 2: Convert to fraction form
    3,791.94/5,684.22 = 1,943.91/x
  3. Step 3: Cross multiply
    3,791.94x = 5,684.22 × 1,943.91
  4. Step 4: Simplify right side
    3,791.94x = 11,049,612.10
  5. Step 5: Solve for x
    x = 11,049,612.10/3,791.94
  6. Step 6: Final answer
    x = 2,913.97

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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.