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Finding the Fourth Proportional to 2,185.50, 3,016.13 and 1,241.38

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Solution

The fourth proportional to 2,185.50, 3,016.13 and 1,241.38 is: 1,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.50 : 3,016.13 = 1,241.38 : x
  2. Step 2: Convert to fraction form
    2,185.50/3,016.13 = 1,241.38/x
  3. Step 3: Cross multiply
    2,185.50x = 3,016.13 × 1,241.38
  4. Step 4: Simplify right side
    2,185.50x = 3,744,163.46
  5. Step 5: Solve for x
    x = 3,744,163.46/2,185.50
  6. Step 6: Final answer
    x = 1,713.18

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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.