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Finding the Fourth Proportional to 33,995.91, 50,993.85 and 12,931.08

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Solution

The fourth proportional to 33,995.91, 50,993.85 and 12,931.08 is: 19,396.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,995.91 : 50,993.85 = 12,931.08 : x
  2. Step 2: Convert to fraction form
    33,995.91/50,993.85 = 12,931.08/x
  3. Step 3: Cross multiply
    33,995.91x = 50,993.85 × 12,931.08
  4. Step 4: Simplify right side
    33,995.91x = 659,405,553.86
  5. Step 5: Solve for x
    x = 659,405,553.86/33,995.91
  6. Step 6: Final answer
    x = 19,396.61

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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.