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Finding the Fourth Proportional to 3,611.96, 4,984.42 and 2,040.02

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Solution

The fourth proportional to 3,611.96, 4,984.42 and 2,040.02 is: 2,815.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.96 : 4,984.42 = 2,040.02 : x
  2. Step 2: Convert to fraction form
    3,611.96/4,984.42 = 2,040.02/x
  3. Step 3: Cross multiply
    3,611.96x = 4,984.42 × 2,040.02
  4. Step 4: Simplify right side
    3,611.96x = 10,168,316.49
  5. Step 5: Solve for x
    x = 10,168,316.49/3,611.96
  6. Step 6: Final answer
    x = 2,815.18

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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.