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Finding the Fourth Proportional to 2,983.52, 4,474.86 and 792.44

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Solution

The fourth proportional to 2,983.52, 4,474.86 and 792.44 is: 1,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.52 : 4,474.86 = 792.44 : x
  2. Step 2: Convert to fraction form
    2,983.52/4,474.86 = 792.44/x
  3. Step 3: Cross multiply
    2,983.52x = 4,474.86 × 792.44
  4. Step 4: Simplify right side
    2,983.52x = 3,546,058.06
  5. Step 5: Solve for x
    x = 3,546,058.06/2,983.52
  6. Step 6: Final answer
    x = 1,188.55

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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.