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Finding the Fourth Proportional to 2,544.66, 3,817.62 and 813.27

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Solution

The fourth proportional to 2,544.66, 3,817.62 and 813.27 is: 1,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,544.66 : 3,817.62 = 813.27 : x
  2. Step 2: Convert to fraction form
    2,544.66/3,817.62 = 813.27/x
  3. Step 3: Cross multiply
    2,544.66x = 3,817.62 × 813.27
  4. Step 4: Simplify right side
    2,544.66x = 3,104,755.82
  5. Step 5: Solve for x
    x = 3,104,755.82/2,544.66
  6. Step 6: Final answer
    x = 1,220.11

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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.