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Finding the Fourth Proportional to 2,874.26, 4,308.96 and 1,703

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Solution

The fourth proportional to 2,874.26, 4,308.96 and 1,703 is: 2,553.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.26 : 4,308.96 = 1,703 : x
  2. Step 2: Convert to fraction form
    2,874.26/4,308.96 = 1,703/x
  3. Step 3: Cross multiply
    2,874.26x = 4,308.96 × 1,703
  4. Step 4: Simplify right side
    2,874.26x = 7,338,158.88
  5. Step 5: Solve for x
    x = 7,338,158.88/2,874.26
  6. Step 6: Final answer
    x = 2,553.06

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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.