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Finding the Fourth Proportional to 3,968.58, 5,481.03 and 3,083.04

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Solution

The fourth proportional to 3,968.58, 5,481.03 and 3,083.04 is: 4,258.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.58 : 5,481.03 = 3,083.04 : x
  2. Step 2: Convert to fraction form
    3,968.58/5,481.03 = 3,083.04/x
  3. Step 3: Cross multiply
    3,968.58x = 5,481.03 × 3,083.04
  4. Step 4: Simplify right side
    3,968.58x = 16,898,234.73
  5. Step 5: Solve for x
    x = 16,898,234.73/3,968.58
  6. Step 6: Final answer
    x = 4,258.01

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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.