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Finding the Fourth Proportional to 36,872.91, 50,884.67 and 20,105.91

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Solution

The fourth proportional to 36,872.91, 50,884.67 and 20,105.91 is: 27,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,872.91 : 50,884.67 = 20,105.91 : x
  2. Step 2: Convert to fraction form
    36,872.91/50,884.67 = 20,105.91/x
  3. Step 3: Cross multiply
    36,872.91x = 50,884.67 × 20,105.91
  4. Step 4: Simplify right side
    36,872.91x = 1,023,082,494.87
  5. Step 5: Solve for x
    x = 1,023,082,494.87/36,872.91
  6. Step 6: Final answer
    x = 27,746.18

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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.