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Finding the Fourth Proportional to 36,590.75, 50,493.70 and 20,675.80

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Solution

The fourth proportional to 36,590.75, 50,493.70 and 20,675.80 is: 28,531.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,590.75 : 50,493.70 = 20,675.80 : x
  2. Step 2: Convert to fraction form
    36,590.75/50,493.70 = 20,675.80/x
  3. Step 3: Cross multiply
    36,590.75x = 50,493.70 × 20,675.80
  4. Step 4: Simplify right side
    36,590.75x = 1,043,997,286.61
  5. Step 5: Solve for x
    x = 1,043,997,286.61/36,590.75
  6. Step 6: Final answer
    x = 28,531.73

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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.