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Finding the Fourth Proportional to 57,805.20, 79,770.90 and 32,311.56

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Solution

The fourth proportional to 57,805.20, 79,770.90 and 32,311.56 is: 44,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,805.20 : 79,770.90 = 32,311.56 : x
  2. Step 2: Convert to fraction form
    57,805.20/79,770.90 = 32,311.56/x
  3. Step 3: Cross multiply
    57,805.20x = 79,770.90 × 32,311.56
  4. Step 4: Simplify right side
    57,805.20x = 2,577,522,221.60
  5. Step 5: Solve for x
    x = 2,577,522,221.60/57,805.20
  6. Step 6: Final answer
    x = 44,589.80

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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.