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Finding the Fourth Proportional to 3,791.66, 5,687.51 and 1,941.77

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Solution

The fourth proportional to 3,791.66, 5,687.51 and 1,941.77 is: 2,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.66 : 5,687.51 = 1,941.77 : x
  2. Step 2: Convert to fraction form
    3,791.66/5,687.51 = 1,941.77/x
  3. Step 3: Cross multiply
    3,791.66x = 5,687.51 × 1,941.77
  4. Step 4: Simplify right side
    3,791.66x = 11,043,798.15
  5. Step 5: Solve for x
    x = 11,043,798.15/3,791.66
  6. Step 6: Final answer
    x = 2,912.66

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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.