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Finding the Fourth Proportional to 3,993.73, 5,510.39 and 3,001.39

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Solution

The fourth proportional to 3,993.73, 5,510.39 and 3,001.39 is: 4,141.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.73 : 5,510.39 = 3,001.39 : x
  2. Step 2: Convert to fraction form
    3,993.73/5,510.39 = 3,001.39/x
  3. Step 3: Cross multiply
    3,993.73x = 5,510.39 × 3,001.39
  4. Step 4: Simplify right side
    3,993.73x = 16,538,800.66
  5. Step 5: Solve for x
    x = 16,538,800.66/3,993.73
  6. Step 6: Final answer
    x = 4,141.19

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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.