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Finding the Fourth Proportional to 11,651.70, 17,480.28 and 3,331.83

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Solution

The fourth proportional to 11,651.70, 17,480.28 and 3,331.83 is: 4,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.70 : 17,480.28 = 3,331.83 : x
  2. Step 2: Convert to fraction form
    11,651.70/17,480.28 = 3,331.83/x
  3. Step 3: Cross multiply
    11,651.70x = 17,480.28 × 3,331.83
  4. Step 4: Simplify right side
    11,651.70x = 58,241,321.31
  5. Step 5: Solve for x
    x = 58,241,321.31/11,651.70
  6. Step 6: Final answer
    x = 4,998.53

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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.