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Finding the Fourth Proportional to 7,993.71, 11,989.20 and 3,610.14

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Solution

The fourth proportional to 7,993.71, 11,989.20 and 3,610.14 is: 5,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.71 : 11,989.20 = 3,610.14 : x
  2. Step 2: Convert to fraction form
    7,993.71/11,989.20 = 3,610.14/x
  3. Step 3: Cross multiply
    7,993.71x = 11,989.20 × 3,610.14
  4. Step 4: Simplify right side
    7,993.71x = 43,282,690.49
  5. Step 5: Solve for x
    x = 43,282,690.49/7,993.71
  6. Step 6: Final answer
    x = 5,414.59

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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.