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Finding the Fourth Proportional to 7,052.78, 10,579.21 and 2,122.39

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Solution

The fourth proportional to 7,052.78, 10,579.21 and 2,122.39 is: 3,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,052.78 : 10,579.21 = 2,122.39 : x
  2. Step 2: Convert to fraction form
    7,052.78/10,579.21 = 2,122.39/x
  3. Step 3: Cross multiply
    7,052.78x = 10,579.21 × 2,122.39
  4. Step 4: Simplify right side
    7,052.78x = 22,453,183.73
  5. Step 5: Solve for x
    x = 22,453,183.73/7,052.78
  6. Step 6: Final answer
    x = 3,183.59

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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.