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Finding the Fourth Proportional to 3,835.69, 5,749.65 and 1,494.23

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Solution

The fourth proportional to 3,835.69, 5,749.65 and 1,494.23 is: 2,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.69 : 5,749.65 = 1,494.23 : x
  2. Step 2: Convert to fraction form
    3,835.69/5,749.65 = 1,494.23/x
  3. Step 3: Cross multiply
    3,835.69x = 5,749.65 × 1,494.23
  4. Step 4: Simplify right side
    3,835.69x = 8,591,299.52
  5. Step 5: Solve for x
    x = 8,591,299.52/3,835.69
  6. Step 6: Final answer
    x = 2,239.83

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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.