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Finding the Fourth Proportional to 22,321.72, 33,481.61 and 6,738.88

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Solution

The fourth proportional to 22,321.72, 33,481.61 and 6,738.88 is: 10,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,321.72 : 33,481.61 = 6,738.88 : x
  2. Step 2: Convert to fraction form
    22,321.72/33,481.61 = 6,738.88/x
  3. Step 3: Cross multiply
    22,321.72x = 33,481.61 × 6,738.88
  4. Step 4: Simplify right side
    22,321.72x = 225,628,384.59
  5. Step 5: Solve for x
    x = 225,628,384.59/22,321.72
  6. Step 6: Final answer
    x = 10,108.02

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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.