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Finding the Fourth Proportional to 6,879.12, 10,322.12 and 2,932.95

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Solution

The fourth proportional to 6,879.12, 10,322.12 and 2,932.95 is: 4,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.12 : 10,322.12 = 2,932.95 : x
  2. Step 2: Convert to fraction form
    6,879.12/10,322.12 = 2,932.95/x
  3. Step 3: Cross multiply
    6,879.12x = 10,322.12 × 2,932.95
  4. Step 4: Simplify right side
    6,879.12x = 30,274,247.19
  5. Step 5: Solve for x
    x = 30,274,247.19/6,879.12
  6. Step 6: Final answer
    x = 4,400.89

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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.