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Finding the Fourth Proportional to 6,879.48, 9,494.10 and 3,895.44

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Solution

The fourth proportional to 6,879.48, 9,494.10 and 3,895.44 is: 5,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.48 : 9,494.10 = 3,895.44 : x
  2. Step 2: Convert to fraction form
    6,879.48/9,494.10 = 3,895.44/x
  3. Step 3: Cross multiply
    6,879.48x = 9,494.10 × 3,895.44
  4. Step 4: Simplify right side
    6,879.48x = 36,983,696.90
  5. Step 5: Solve for x
    x = 36,983,696.90/6,879.48
  6. Step 6: Final answer
    x = 5,375.94

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1.5x scale

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.