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Finding the Fourth Proportional to 6,751.44, 10,128.78 and 2,134.44

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Solution

The fourth proportional to 6,751.44, 10,128.78 and 2,134.44 is: 3,202.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.44 : 10,128.78 = 2,134.44 : x
  2. Step 2: Convert to fraction form
    6,751.44/10,128.78 = 2,134.44/x
  3. Step 3: Cross multiply
    6,751.44x = 10,128.78 × 2,134.44
  4. Step 4: Simplify right side
    6,751.44x = 21,619,273.18
  5. Step 5: Solve for x
    x = 21,619,273.18/6,751.44
  6. Step 6: Final answer
    x = 3,202.17

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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.