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Finding the Fourth Proportional to 36,761.60, 50,729.28 and 20,844.80

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Solution

The fourth proportional to 36,761.60, 50,729.28 and 20,844.80 is: 28,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,761.60 : 50,729.28 = 20,844.80 : x
  2. Step 2: Convert to fraction form
    36,761.60/50,729.28 = 20,844.80/x
  3. Step 3: Cross multiply
    36,761.60x = 50,729.28 × 20,844.80
  4. Step 4: Simplify right side
    36,761.60x = 1,057,441,695.74
  5. Step 5: Solve for x
    x = 1,057,441,695.74/36,761.60
  6. Step 6: Final answer
    x = 28,764.84

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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.