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Finding the Fourth Proportional to 6,665.70, 9,198.22 and 3,832.40

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Solution

The fourth proportional to 6,665.70, 9,198.22 and 3,832.40 is: 5,288.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.70 : 9,198.22 = 3,832.40 : x
  2. Step 2: Convert to fraction form
    6,665.70/9,198.22 = 3,832.40/x
  3. Step 3: Cross multiply
    6,665.70x = 9,198.22 × 3,832.40
  4. Step 4: Simplify right side
    6,665.70x = 35,251,258.33
  5. Step 5: Solve for x
    x = 35,251,258.33/6,665.70
  6. Step 6: Final answer
    x = 5,288.46

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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.