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Finding the Fourth Proportional to 6,961.81, 10,443.14 and 2,801.80

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Solution

The fourth proportional to 6,961.81, 10,443.14 and 2,801.80 is: 4,202.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,961.81 : 10,443.14 = 2,801.80 : x
  2. Step 2: Convert to fraction form
    6,961.81/10,443.14 = 2,801.80/x
  3. Step 3: Cross multiply
    6,961.81x = 10,443.14 × 2,801.80
  4. Step 4: Simplify right side
    6,961.81x = 29,259,575.64
  5. Step 5: Solve for x
    x = 29,259,575.64/6,961.81
  6. Step 6: Final answer
    x = 4,202.87

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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.