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Finding the Fourth Proportional to 3,392.52, 5,074.92 and 2,564.64

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Solution

The fourth proportional to 3,392.52, 5,074.92 and 2,564.64 is: 3,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.52 : 5,074.92 = 2,564.64 : x
  2. Step 2: Convert to fraction form
    3,392.52/5,074.92 = 2,564.64/x
  3. Step 3: Cross multiply
    3,392.52x = 5,074.92 × 2,564.64
  4. Step 4: Simplify right side
    3,392.52x = 13,015,342.83
  5. Step 5: Solve for x
    x = 13,015,342.83/3,392.52
  6. Step 6: Final answer
    x = 3,836.48

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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.