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Finding the Fourth Proportional to 5,720.78, 8,579.62 and 2,022.52

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Solution

The fourth proportional to 5,720.78, 8,579.62 and 2,022.52 is: 3,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.78 : 8,579.62 = 2,022.52 : x
  2. Step 2: Convert to fraction form
    5,720.78/8,579.62 = 2,022.52/x
  3. Step 3: Cross multiply
    5,720.78x = 8,579.62 × 2,022.52
  4. Step 4: Simplify right side
    5,720.78x = 17,352,453.04
  5. Step 5: Solve for x
    x = 17,352,453.04/5,720.78
  6. Step 6: Final answer
    x = 3,033.23

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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.