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Finding the Fourth Proportional to 36,879.68, 50,894.16 and 20,112.32

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Solution

The fourth proportional to 36,879.68, 50,894.16 and 20,112.32 is: 27,755.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,879.68 : 50,894.16 = 20,112.32 : x
  2. Step 2: Convert to fraction form
    36,879.68/50,894.16 = 20,112.32/x
  3. Step 3: Cross multiply
    36,879.68x = 50,894.16 × 20,112.32
  4. Step 4: Simplify right side
    36,879.68x = 1,023,599,632.05
  5. Step 5: Solve for x
    x = 1,023,599,632.05/36,879.68
  6. Step 6: Final answer
    x = 27,755.11

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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.