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Finding the Fourth Proportional to 10,879.04, 16,321.44 and 3,954.24

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Solution

The fourth proportional to 10,879.04, 16,321.44 and 3,954.24 is: 5,932.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.04 : 16,321.44 = 3,954.24 : x
  2. Step 2: Convert to fraction form
    10,879.04/16,321.44 = 3,954.24/x
  3. Step 3: Cross multiply
    10,879.04x = 16,321.44 × 3,954.24
  4. Step 4: Simplify right side
    10,879.04x = 64,538,890.91
  5. Step 5: Solve for x
    x = 64,538,890.91/10,879.04
  6. Step 6: Final answer
    x = 5,932.41

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1.5x scale

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.