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Finding the Fourth Proportional to 3,555.62, 5,338.05 and 2,734.48

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Solution

The fourth proportional to 3,555.62, 5,338.05 and 2,734.48 is: 4,105.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.62 : 5,338.05 = 2,734.48 : x
  2. Step 2: Convert to fraction form
    3,555.62/5,338.05 = 2,734.48/x
  3. Step 3: Cross multiply
    3,555.62x = 5,338.05 × 2,734.48
  4. Step 4: Simplify right side
    3,555.62x = 14,596,764.27
  5. Step 5: Solve for x
    x = 14,596,764.27/3,555.62
  6. Step 6: Final answer
    x = 4,105.27

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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.