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Finding the Fourth Proportional to 3,998.09, 5,510.46 and 3,001.62

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Solution

The fourth proportional to 3,998.09, 5,510.46 and 3,001.62 is: 4,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.09 : 5,510.46 = 3,001.62 : x
  2. Step 2: Convert to fraction form
    3,998.09/5,510.46 = 3,001.62/x
  3. Step 3: Cross multiply
    3,998.09x = 5,510.46 × 3,001.62
  4. Step 4: Simplify right side
    3,998.09x = 16,540,338.87
  5. Step 5: Solve for x
    x = 16,540,338.87/3,998.09
  6. Step 6: Final answer
    x = 4,137.06

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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.