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Finding the Fourth Proportional to 43,694.80, 65,621.40 and 38,251.60

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Solution

The fourth proportional to 43,694.80, 65,621.40 and 38,251.60 is: 57,446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,694.80 : 65,621.40 = 38,251.60 : x
  2. Step 2: Convert to fraction form
    43,694.80/65,621.40 = 38,251.60/x
  3. Step 3: Cross multiply
    43,694.80x = 65,621.40 × 38,251.60
  4. Step 4: Simplify right side
    43,694.80x = 2,510,123,544.24
  5. Step 5: Solve for x
    x = 2,510,123,544.24/43,694.80
  6. Step 6: Final answer
    x = 57,446.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.