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Finding the Fourth Proportional to 7,067.71, 9,747.93 and 4,942.54

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Solution

The fourth proportional to 7,067.71, 9,747.93 and 4,942.54 is: 6,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.71 : 9,747.93 = 4,942.54 : x
  2. Step 2: Convert to fraction form
    7,067.71/9,747.93 = 4,942.54/x
  3. Step 3: Cross multiply
    7,067.71x = 9,747.93 × 4,942.54
  4. Step 4: Simplify right side
    7,067.71x = 48,179,533.94
  5. Step 5: Solve for x
    x = 48,179,533.94/7,067.71
  6. Step 6: Final answer
    x = 6,816.85

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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.