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Finding the Fourth Proportional to 4,879.07, 6,731.30 and 3,201.41

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Solution

The fourth proportional to 4,879.07, 6,731.30 and 3,201.41 is: 4,416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.07 : 6,731.30 = 3,201.41 : x
  2. Step 2: Convert to fraction form
    4,879.07/6,731.30 = 3,201.41/x
  3. Step 3: Cross multiply
    4,879.07x = 6,731.30 × 3,201.41
  4. Step 4: Simplify right side
    4,879.07x = 21,549,638.10
  5. Step 5: Solve for x
    x = 21,549,638.10/4,879.07
  6. Step 6: Final answer
    x = 4,416.75

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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.