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Finding the Fourth Proportional to 7,183.56, 10,775.21 and 3,917.44

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Solution

The fourth proportional to 7,183.56, 10,775.21 and 3,917.44 is: 5,876.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.56 : 10,775.21 = 3,917.44 : x
  2. Step 2: Convert to fraction form
    7,183.56/10,775.21 = 3,917.44/x
  3. Step 3: Cross multiply
    7,183.56x = 10,775.21 × 3,917.44
  4. Step 4: Simplify right side
    7,183.56x = 42,211,232.54
  5. Step 5: Solve for x
    x = 42,211,232.54/7,183.56
  6. Step 6: Final answer
    x = 5,876.09

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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.