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Finding the Fourth Proportional to 36,879.47, 50,893.72 and 20,112.47

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Solution

The fourth proportional to 36,879.47, 50,893.72 and 20,112.47 is: 27,755.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,879.47 : 50,893.72 = 20,112.47 : x
  2. Step 2: Convert to fraction form
    36,879.47/50,893.72 = 20,112.47/x
  3. Step 3: Cross multiply
    36,879.47x = 50,893.72 × 20,112.47
  4. Step 4: Simplify right side
    36,879.47x = 1,023,598,302.79
  5. Step 5: Solve for x
    x = 1,023,598,302.79/36,879.47
  6. Step 6: Final answer
    x = 27,755.23

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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.