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Finding the Fourth Proportional to 2,990.91, 4,481.81 and 2,053.24

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Solution

The fourth proportional to 2,990.91, 4,481.81 and 2,053.24 is: 3,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.91 : 4,481.81 = 2,053.24 : x
  2. Step 2: Convert to fraction form
    2,990.91/4,481.81 = 2,053.24/x
  3. Step 3: Cross multiply
    2,990.91x = 4,481.81 × 2,053.24
  4. Step 4: Simplify right side
    2,990.91x = 9,202,231.56
  5. Step 5: Solve for x
    x = 9,202,231.56/2,990.91
  6. Step 6: Final answer
    x = 3,076.73

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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.