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Finding the Fourth Proportional to 3,042.67, 4,563.30 and 851.62

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Solution

The fourth proportional to 3,042.67, 4,563.30 and 851.62 is: 1,277.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.67 : 4,563.30 = 851.62 : x
  2. Step 2: Convert to fraction form
    3,042.67/4,563.30 = 851.62/x
  3. Step 3: Cross multiply
    3,042.67x = 4,563.30 × 851.62
  4. Step 4: Simplify right side
    3,042.67x = 3,886,174.73
  5. Step 5: Solve for x
    x = 3,886,174.73/3,042.67
  6. Step 6: Final answer
    x = 1,277.23

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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.