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Finding the Fourth Proportional to 7,067.44, 9,751.52 and 4,272.88

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Solution

The fourth proportional to 7,067.44, 9,751.52 and 4,272.88 is: 5,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.44 : 9,751.52 = 4,272.88 : x
  2. Step 2: Convert to fraction form
    7,067.44/9,751.52 = 4,272.88/x
  3. Step 3: Cross multiply
    7,067.44x = 9,751.52 × 4,272.88
  4. Step 4: Simplify right side
    7,067.44x = 41,667,074.78
  5. Step 5: Solve for x
    x = 41,667,074.78/7,067.44
  6. Step 6: Final answer
    x = 5,895.64

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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.