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Finding the Fourth Proportional to 5,165.92, 7,737.54 and 3,863.44

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Solution

The fourth proportional to 5,165.92, 7,737.54 and 3,863.44 is: 5,786.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.92 : 7,737.54 = 3,863.44 : x
  2. Step 2: Convert to fraction form
    5,165.92/7,737.54 = 3,863.44/x
  3. Step 3: Cross multiply
    5,165.92x = 7,737.54 × 3,863.44
  4. Step 4: Simplify right side
    5,165.92x = 29,893,521.54
  5. Step 5: Solve for x
    x = 29,893,521.54/5,165.92
  6. Step 6: Final answer
    x = 5,786.68

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1.5x scale

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.