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Finding the Fourth Proportional to 2,135.14, 3,202.25 and 673.49

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Solution

The fourth proportional to 2,135.14, 3,202.25 and 673.49 is: 1,010.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.14 : 3,202.25 = 673.49 : x
  2. Step 2: Convert to fraction form
    2,135.14/3,202.25 = 673.49/x
  3. Step 3: Cross multiply
    2,135.14x = 3,202.25 × 673.49
  4. Step 4: Simplify right side
    2,135.14x = 2,156,687.99
  5. Step 5: Solve for x
    x = 2,156,687.99/2,135.14
  6. Step 6: Final answer
    x = 1,010.09

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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.