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Finding the Fourth Proportional to 5,141.44, 7,716.30 and 2,677

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Solution

The fourth proportional to 5,141.44, 7,716.30 and 2,677 is: 4,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.44 : 7,716.30 = 2,677 : x
  2. Step 2: Convert to fraction form
    5,141.44/7,716.30 = 2,677/x
  3. Step 3: Cross multiply
    5,141.44x = 7,716.30 × 2,677
  4. Step 4: Simplify right side
    5,141.44x = 20,656,535.10
  5. Step 5: Solve for x
    x = 20,656,535.10/5,141.44
  6. Step 6: Final answer
    x = 4,017.66

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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.