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Finding the Fourth Proportional to 5,835.44, 8,751.90 and 2,139.38

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Solution

The fourth proportional to 5,835.44, 8,751.90 and 2,139.38 is: 3,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,835.44 : 8,751.90 = 2,139.38 : x
  2. Step 2: Convert to fraction form
    5,835.44/8,751.90 = 2,139.38/x
  3. Step 3: Cross multiply
    5,835.44x = 8,751.90 × 2,139.38
  4. Step 4: Simplify right side
    5,835.44x = 18,723,639.82
  5. Step 5: Solve for x
    x = 18,723,639.82/5,835.44
  6. Step 6: Final answer
    x = 3,208.61

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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.