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Finding the Fourth Proportional to 2,879.66, 4,315.17 and 2,059.67

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Solution

The fourth proportional to 2,879.66, 4,315.17 and 2,059.67 is: 3,086.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.66 : 4,315.17 = 2,059.67 : x
  2. Step 2: Convert to fraction form
    2,879.66/4,315.17 = 2,059.67/x
  3. Step 3: Cross multiply
    2,879.66x = 4,315.17 × 2,059.67
  4. Step 4: Simplify right side
    2,879.66x = 8,887,826.19
  5. Step 5: Solve for x
    x = 8,887,826.19/2,879.66
  6. Step 6: Final answer
    x = 3,086.42

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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.