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Finding the Fourth Proportional to 2,082.68, 2,874.11 and 1,336.94

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Solution

The fourth proportional to 2,082.68, 2,874.11 and 1,336.94 is: 1,844.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.68 : 2,874.11 = 1,336.94 : x
  2. Step 2: Convert to fraction form
    2,082.68/2,874.11 = 1,336.94/x
  3. Step 3: Cross multiply
    2,082.68x = 2,874.11 × 1,336.94
  4. Step 4: Simplify right side
    2,082.68x = 3,842,491.57
  5. Step 5: Solve for x
    x = 3,842,491.57/2,082.68
  6. Step 6: Final answer
    x = 1,844.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.