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Finding the Fourth Proportional to 3,183.64, 4,393.41 and 1,941.64

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Solution

The fourth proportional to 3,183.64, 4,393.41 and 1,941.64 is: 2,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.64 : 4,393.41 = 1,941.64 : x
  2. Step 2: Convert to fraction form
    3,183.64/4,393.41 = 1,941.64/x
  3. Step 3: Cross multiply
    3,183.64x = 4,393.41 × 1,941.64
  4. Step 4: Simplify right side
    3,183.64x = 8,530,420.59
  5. Step 5: Solve for x
    x = 8,530,420.59/3,183.64
  6. Step 6: Final answer
    x = 2,679.46

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1.5x scale

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.