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Finding the Fourth Proportional to 3,372.42, 5,059.31 and 1,424.62

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Solution

The fourth proportional to 3,372.42, 5,059.31 and 1,424.62 is: 2,137.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.42 : 5,059.31 = 1,424.62 : x
  2. Step 2: Convert to fraction form
    3,372.42/5,059.31 = 1,424.62/x
  3. Step 3: Cross multiply
    3,372.42x = 5,059.31 × 1,424.62
  4. Step 4: Simplify right side
    3,372.42x = 7,207,594.21
  5. Step 5: Solve for x
    x = 7,207,594.21/3,372.42
  6. Step 6: Final answer
    x = 2,137.22

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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.