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Finding the Fourth Proportional to 10,993.92, 16,491.06 and 3,974.46

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Solution

The fourth proportional to 10,993.92, 16,491.06 and 3,974.46 is: 5,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.92 : 16,491.06 = 3,974.46 : x
  2. Step 2: Convert to fraction form
    10,993.92/16,491.06 = 3,974.46/x
  3. Step 3: Cross multiply
    10,993.92x = 16,491.06 × 3,974.46
  4. Step 4: Simplify right side
    10,993.92x = 65,543,058.33
  5. Step 5: Solve for x
    x = 65,543,058.33/10,993.92
  6. Step 6: Final answer
    x = 5,961.76

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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.