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Finding the Fourth Proportional to 19,067.53, 28,604.04 and 7,225.78

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Solution

The fourth proportional to 19,067.53, 28,604.04 and 7,225.78 is: 10,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,067.53 : 28,604.04 = 7,225.78 : x
  2. Step 2: Convert to fraction form
    19,067.53/28,604.04 = 7,225.78/x
  3. Step 3: Cross multiply
    19,067.53x = 28,604.04 × 7,225.78
  4. Step 4: Simplify right side
    19,067.53x = 206,686,500.15
  5. Step 5: Solve for x
    x = 206,686,500.15/19,067.53
  6. Step 6: Final answer
    x = 10,839.71

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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.