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Finding the Fourth Proportional to 4,800.66, 6,625.77 and 2,811.10

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Solution

The fourth proportional to 4,800.66, 6,625.77 and 2,811.10 is: 3,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.66 : 6,625.77 = 2,811.10 : x
  2. Step 2: Convert to fraction form
    4,800.66/6,625.77 = 2,811.10/x
  3. Step 3: Cross multiply
    4,800.66x = 6,625.77 × 2,811.10
  4. Step 4: Simplify right side
    4,800.66x = 18,625,702.05
  5. Step 5: Solve for x
    x = 18,625,702.05/4,800.66
  6. Step 6: Final answer
    x = 3,879.82

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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.