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Finding the Fourth Proportional to 2,462.11, 3,691.93 and 818.08

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Solution

The fourth proportional to 2,462.11, 3,691.93 and 818.08 is: 1,226.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,462.11 : 3,691.93 = 818.08 : x
  2. Step 2: Convert to fraction form
    2,462.11/3,691.93 = 818.08/x
  3. Step 3: Cross multiply
    2,462.11x = 3,691.93 × 818.08
  4. Step 4: Simplify right side
    2,462.11x = 3,020,294.09
  5. Step 5: Solve for x
    x = 3,020,294.09/2,462.11
  6. Step 6: Final answer
    x = 1,226.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.