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Finding the Fourth Proportional to 36,778.26, 50,754.99 and 20,865.11

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Solution

The fourth proportional to 36,778.26, 50,754.99 and 20,865.11 is: 28,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,778.26 : 50,754.99 = 20,865.11 : x
  2. Step 2: Convert to fraction form
    36,778.26/50,754.99 = 20,865.11/x
  3. Step 3: Cross multiply
    36,778.26x = 50,754.99 × 20,865.11
  4. Step 4: Simplify right side
    36,778.26x = 1,059,008,273.87
  5. Step 5: Solve for x
    x = 1,059,008,273.87/36,778.26
  6. Step 6: Final answer
    x = 28,794.41

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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.