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Finding the Fourth Proportional to 4,879.11, 6,736.47 and 3,203.37

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Solution

The fourth proportional to 4,879.11, 6,736.47 and 3,203.37 is: 4,422.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.11 : 6,736.47 = 3,203.37 : x
  2. Step 2: Convert to fraction form
    4,879.11/6,736.47 = 3,203.37/x
  3. Step 3: Cross multiply
    4,879.11x = 6,736.47 × 3,203.37
  4. Step 4: Simplify right side
    4,879.11x = 21,579,405.90
  5. Step 5: Solve for x
    x = 21,579,405.90/4,879.11
  6. Step 6: Final answer
    x = 4,422.82

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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.