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Finding the Fourth Proportional to 20,375.84, 30,553.68 and 7,226.24

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Solution

The fourth proportional to 20,375.84, 30,553.68 and 7,226.24 is: 10,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.84 : 30,553.68 = 7,226.24 : x
  2. Step 2: Convert to fraction form
    20,375.84/30,553.68 = 7,226.24/x
  3. Step 3: Cross multiply
    20,375.84x = 30,553.68 × 7,226.24
  4. Step 4: Simplify right side
    20,375.84x = 220,788,224.56
  5. Step 5: Solve for x
    x = 220,788,224.56/20,375.84
  6. Step 6: Final answer
    x = 10,835.79

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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.