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Finding the Fourth Proportional to 5,879.44, 8,112.36 and 3,394

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Solution

The fourth proportional to 5,879.44, 8,112.36 and 3,394 is: 4,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.44 : 8,112.36 = 3,394 : x
  2. Step 2: Convert to fraction form
    5,879.44/8,112.36 = 3,394/x
  3. Step 3: Cross multiply
    5,879.44x = 8,112.36 × 3,394
  4. Step 4: Simplify right side
    5,879.44x = 27,533,349.84
  5. Step 5: Solve for x
    x = 27,533,349.84/5,879.44
  6. Step 6: Final answer
    x = 4,682.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.