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Finding the Fourth Proportional to 9,694.10, 13,379.33 and 5,919.47

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Solution

The fourth proportional to 9,694.10, 13,379.33 and 5,919.47 is: 8,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,694.10 : 13,379.33 = 5,919.47 : x
  2. Step 2: Convert to fraction form
    9,694.10/13,379.33 = 5,919.47/x
  3. Step 3: Cross multiply
    9,694.10x = 13,379.33 × 5,919.47
  4. Step 4: Simplify right side
    9,694.10x = 79,198,542.56
  5. Step 5: Solve for x
    x = 79,198,542.56/9,694.10
  6. Step 6: Final answer
    x = 8,169.77

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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.