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Finding the Fourth Proportional to 3,727.72, 5,591.64 and 954.33

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Solution

The fourth proportional to 3,727.72, 5,591.64 and 954.33 is: 1,431.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.72 : 5,591.64 = 954.33 : x
  2. Step 2: Convert to fraction form
    3,727.72/5,591.64 = 954.33/x
  3. Step 3: Cross multiply
    3,727.72x = 5,591.64 × 954.33
  4. Step 4: Simplify right side
    3,727.72x = 5,336,269.80
  5. Step 5: Solve for x
    x = 5,336,269.80/3,727.72
  6. Step 6: Final answer
    x = 1,431.51

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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.