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Finding the Fourth Proportional to 3,042.72, 4,563.56 and 850.94

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Solution

The fourth proportional to 3,042.72, 4,563.56 and 850.94 is: 1,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.72 : 4,563.56 = 850.94 : x
  2. Step 2: Convert to fraction form
    3,042.72/4,563.56 = 850.94/x
  3. Step 3: Cross multiply
    3,042.72x = 4,563.56 × 850.94
  4. Step 4: Simplify right side
    3,042.72x = 3,883,288.67
  5. Step 5: Solve for x
    x = 3,883,288.67/3,042.72
  6. Step 6: Final answer
    x = 1,276.26

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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.