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Finding the Fourth Proportional to 5,879.78, 8,825.43 and 2,803.94

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Solution

The fourth proportional to 5,879.78, 8,825.43 and 2,803.94 is: 4,208.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.78 : 8,825.43 = 2,803.94 : x
  2. Step 2: Convert to fraction form
    5,879.78/8,825.43 = 2,803.94/x
  3. Step 3: Cross multiply
    5,879.78x = 8,825.43 × 2,803.94
  4. Step 4: Simplify right side
    5,879.78x = 24,745,976.19
  5. Step 5: Solve for x
    x = 24,745,976.19/5,879.78
  6. Step 6: Final answer
    x = 4,208.66

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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.