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Finding the Fourth Proportional to 7,168.67, 10,751.17 and 2,783.73

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Solution

The fourth proportional to 7,168.67, 10,751.17 and 2,783.73 is: 4,174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.67 : 10,751.17 = 2,783.73 : x
  2. Step 2: Convert to fraction form
    7,168.67/10,751.17 = 2,783.73/x
  3. Step 3: Cross multiply
    7,168.67x = 10,751.17 × 2,783.73
  4. Step 4: Simplify right side
    7,168.67x = 29,928,354.46
  5. Step 5: Solve for x
    x = 29,928,354.46/7,168.67
  6. Step 6: Final answer
    x = 4,174.88

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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.