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Finding the Fourth Proportional to 2,168.97, 2,993.17 and 1,174.24

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Solution

The fourth proportional to 2,168.97, 2,993.17 and 1,174.24 is: 1,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.97 : 2,993.17 = 1,174.24 : x
  2. Step 2: Convert to fraction form
    2,168.97/2,993.17 = 1,174.24/x
  3. Step 3: Cross multiply
    2,168.97x = 2,993.17 × 1,174.24
  4. Step 4: Simplify right side
    2,168.97x = 3,514,699.94
  5. Step 5: Solve for x
    x = 3,514,699.94/2,168.97
  6. Step 6: Final answer
    x = 1,620.45

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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.