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Finding the Fourth Proportional to 4,660.57, 6,978.43 and 3,922.48

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Solution

The fourth proportional to 4,660.57, 6,978.43 and 3,922.48 is: 5,873.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,660.57 : 6,978.43 = 3,922.48 : x
  2. Step 2: Convert to fraction form
    4,660.57/6,978.43 = 3,922.48/x
  3. Step 3: Cross multiply
    4,660.57x = 6,978.43 × 3,922.48
  4. Step 4: Simplify right side
    4,660.57x = 27,372,752.11
  5. Step 5: Solve for x
    x = 27,372,752.11/4,660.57
  6. Step 6: Final answer
    x = 5,873.26

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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.