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Finding the Fourth Proportional to 2,248.21, 3,372 and 949.38

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Solution

The fourth proportional to 2,248.21, 3,372 and 949.38 is: 1,423.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.21 : 3,372 = 949.38 : x
  2. Step 2: Convert to fraction form
    2,248.21/3,372 = 949.38/x
  3. Step 3: Cross multiply
    2,248.21x = 3,372 × 949.38
  4. Step 4: Simplify right side
    2,248.21x = 3,201,309.36
  5. Step 5: Solve for x
    x = 3,201,309.36/2,248.21
  6. Step 6: Final answer
    x = 1,423.94

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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.