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Finding the Fourth Proportional to 36,478.48, 50,338.84 and 20,566.22

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Solution

The fourth proportional to 36,478.48, 50,338.84 and 20,566.22 is: 28,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,478.48 : 50,338.84 = 20,566.22 : x
  2. Step 2: Convert to fraction form
    36,478.48/50,338.84 = 20,566.22/x
  3. Step 3: Cross multiply
    36,478.48x = 50,338.84 × 20,566.22
  4. Step 4: Simplify right side
    36,478.48x = 1,035,279,657.98
  5. Step 5: Solve for x
    x = 1,035,279,657.98/36,478.48
  6. Step 6: Final answer
    x = 28,380.56

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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.