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Finding the Fourth Proportional to 3,882.73, 5,358.24 and 2,114.33

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Solution

The fourth proportional to 3,882.73, 5,358.24 and 2,114.33 is: 2,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.73 : 5,358.24 = 2,114.33 : x
  2. Step 2: Convert to fraction form
    3,882.73/5,358.24 = 2,114.33/x
  3. Step 3: Cross multiply
    3,882.73x = 5,358.24 × 2,114.33
  4. Step 4: Simplify right side
    3,882.73x = 11,329,077.01
  5. Step 5: Solve for x
    x = 11,329,077.01/3,882.73
  6. Step 6: Final answer
    x = 2,917.81

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1.5x scale

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.