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Finding the Fourth Proportional to 36,600.80, 50,471.12 and 31,313.12

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Solution

The fourth proportional to 36,600.80, 50,471.12 and 31,313.12 is: 43,179.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,600.80 : 50,471.12 = 31,313.12 : x
  2. Step 2: Convert to fraction form
    36,600.80/50,471.12 = 31,313.12/x
  3. Step 3: Cross multiply
    36,600.80x = 50,471.12 × 31,313.12
  4. Step 4: Simplify right side
    36,600.80x = 1,580,408,237.09
  5. Step 5: Solve for x
    x = 1,580,408,237.09/36,600.80
  6. Step 6: Final answer
    x = 43,179.61

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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.