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Finding the Fourth Proportional to 2,069.92, 3,104.97 and 683.37

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Solution

The fourth proportional to 2,069.92, 3,104.97 and 683.37 is: 1,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.92 : 3,104.97 = 683.37 : x
  2. Step 2: Convert to fraction form
    2,069.92/3,104.97 = 683.37/x
  3. Step 3: Cross multiply
    2,069.92x = 3,104.97 × 683.37
  4. Step 4: Simplify right side
    2,069.92x = 2,121,843.35
  5. Step 5: Solve for x
    x = 2,121,843.35/2,069.92
  6. Step 6: Final answer
    x = 1,025.08

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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.