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Finding the Fourth Proportional to 3,221.32, 4,835.22 and 2,353

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Solution

The fourth proportional to 3,221.32, 4,835.22 and 2,353 is: 3,531.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.32 : 4,835.22 = 2,353 : x
  2. Step 2: Convert to fraction form
    3,221.32/4,835.22 = 2,353/x
  3. Step 3: Cross multiply
    3,221.32x = 4,835.22 × 2,353
  4. Step 4: Simplify right side
    3,221.32x = 11,377,272.66
  5. Step 5: Solve for x
    x = 11,377,272.66/3,221.32
  6. Step 6: Final answer
    x = 3,531.87

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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.