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Finding the Fourth Proportional to 3,902.52, 5,383.74 and 2,329.68

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Solution

The fourth proportional to 3,902.52, 5,383.74 and 2,329.68 is: 3,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.52 : 5,383.74 = 2,329.68 : x
  2. Step 2: Convert to fraction form
    3,902.52/5,383.74 = 2,329.68/x
  3. Step 3: Cross multiply
    3,902.52x = 5,383.74 × 2,329.68
  4. Step 4: Simplify right side
    3,902.52x = 12,542,391.40
  5. Step 5: Solve for x
    x = 12,542,391.40/3,902.52
  6. Step 6: Final answer
    x = 3,213.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.