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Finding the Fourth Proportional to 5,149.81, 7,724.76 and 3,372.37

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Solution

The fourth proportional to 5,149.81, 7,724.76 and 3,372.37 is: 5,058.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.81 : 7,724.76 = 3,372.37 : x
  2. Step 2: Convert to fraction form
    5,149.81/7,724.76 = 3,372.37/x
  3. Step 3: Cross multiply
    5,149.81x = 7,724.76 × 3,372.37
  4. Step 4: Simplify right side
    5,149.81x = 26,050,748.88
  5. Step 5: Solve for x
    x = 26,050,748.88/5,149.81
  6. Step 6: Final answer
    x = 5,058.58

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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.