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Finding the Fourth Proportional to 22,620.56, 33,983.86 and 21,342.46

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Solution

The fourth proportional to 22,620.56, 33,983.86 and 21,342.46 is: 32,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.56 : 33,983.86 = 21,342.46 : x
  2. Step 2: Convert to fraction form
    22,620.56/33,983.86 = 21,342.46/x
  3. Step 3: Cross multiply
    22,620.56x = 33,983.86 × 21,342.46
  4. Step 4: Simplify right side
    22,620.56x = 725,299,172.70
  5. Step 5: Solve for x
    x = 725,299,172.70/22,620.56
  6. Step 6: Final answer
    x = 32,063.71

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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.