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Finding the Fourth Proportional to 2,134.76, 3,202.20 and 674.94

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Solution

The fourth proportional to 2,134.76, 3,202.20 and 674.94 is: 1,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.76 : 3,202.20 = 674.94 : x
  2. Step 2: Convert to fraction form
    2,134.76/3,202.20 = 674.94/x
  3. Step 3: Cross multiply
    2,134.76x = 3,202.20 × 674.94
  4. Step 4: Simplify right side
    2,134.76x = 2,161,292.87
  5. Step 5: Solve for x
    x = 2,161,292.87/2,134.76
  6. Step 6: Final answer
    x = 1,012.43

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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.