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Finding the Fourth Proportional to 6,660.91, 9,198.84 and 4,674.79

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Solution

The fourth proportional to 6,660.91, 9,198.84 and 4,674.79 is: 6,455.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.91 : 9,198.84 = 4,674.79 : x
  2. Step 2: Convert to fraction form
    6,660.91/9,198.84 = 4,674.79/x
  3. Step 3: Cross multiply
    6,660.91x = 9,198.84 × 4,674.79
  4. Step 4: Simplify right side
    6,660.91x = 43,002,645.24
  5. Step 5: Solve for x
    x = 43,002,645.24/6,660.91
  6. Step 6: Final answer
    x = 6,455.97

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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.