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Finding the Fourth Proportional to 12,394.97, 17,108.04 and 7,092.87

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Solution

The fourth proportional to 12,394.97, 17,108.04 and 7,092.87 is: 9,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394.97 : 17,108.04 = 7,092.87 : x
  2. Step 2: Convert to fraction form
    12,394.97/17,108.04 = 7,092.87/x
  3. Step 3: Cross multiply
    12,394.97x = 17,108.04 × 7,092.87
  4. Step 4: Simplify right side
    12,394.97x = 121,345,006.27
  5. Step 5: Solve for x
    x = 121,345,006.27/12,394.97
  6. Step 6: Final answer
    x = 9,789.86

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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.