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Finding the Fourth Proportional to 3,552.36, 5,327.90 and 954.69

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Solution

The fourth proportional to 3,552.36, 5,327.90 and 954.69 is: 1,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.36 : 5,327.90 = 954.69 : x
  2. Step 2: Convert to fraction form
    3,552.36/5,327.90 = 954.69/x
  3. Step 3: Cross multiply
    3,552.36x = 5,327.90 × 954.69
  4. Step 4: Simplify right side
    3,552.36x = 5,086,488.08
  5. Step 5: Solve for x
    x = 5,086,488.08/3,552.36
  6. Step 6: Final answer
    x = 1,431.86

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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.