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Finding the Fourth Proportional to 57,769.80, 79,679.64 and 36,528.60

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Solution

The fourth proportional to 57,769.80, 79,679.64 and 36,528.60 is: 50,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.80 : 79,679.64 = 36,528.60 : x
  2. Step 2: Convert to fraction form
    57,769.80/79,679.64 = 36,528.60/x
  3. Step 3: Cross multiply
    57,769.80x = 79,679.64 × 36,528.60
  4. Step 4: Simplify right side
    57,769.80x = 2,910,585,697.70
  5. Step 5: Solve for x
    x = 2,910,585,697.70/57,769.80
  6. Step 6: Final answer
    x = 50,382.48

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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.