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Finding the Fourth Proportional to 2,372.74, 3,558.60 and 2,255.68

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Solution

The fourth proportional to 2,372.74, 3,558.60 and 2,255.68 is: 3,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.74 : 3,558.60 = 2,255.68 : x
  2. Step 2: Convert to fraction form
    2,372.74/3,558.60 = 2,255.68/x
  3. Step 3: Cross multiply
    2,372.74x = 3,558.60 × 2,255.68
  4. Step 4: Simplify right side
    2,372.74x = 8,027,062.85
  5. Step 5: Solve for x
    x = 8,027,062.85/2,372.74
  6. Step 6: Final answer
    x = 3,383.04

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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.