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Finding the Fourth Proportional to 3,944.74, 5,916.30 and 1,863.86

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Solution

The fourth proportional to 3,944.74, 5,916.30 and 1,863.86 is: 2,795.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.74 : 5,916.30 = 1,863.86 : x
  2. Step 2: Convert to fraction form
    3,944.74/5,916.30 = 1,863.86/x
  3. Step 3: Cross multiply
    3,944.74x = 5,916.30 × 1,863.86
  4. Step 4: Simplify right side
    3,944.74x = 11,027,154.92
  5. Step 5: Solve for x
    x = 11,027,154.92/3,944.74
  6. Step 6: Final answer
    x = 2,795.41

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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.