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Finding the Fourth Proportional to 11,992.55, 17,983.22 and 4,092.92

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Solution

The fourth proportional to 11,992.55, 17,983.22 and 4,092.92 is: 6,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.55 : 17,983.22 = 4,092.92 : x
  2. Step 2: Convert to fraction form
    11,992.55/17,983.22 = 4,092.92/x
  3. Step 3: Cross multiply
    11,992.55x = 17,983.22 × 4,092.92
  4. Step 4: Simplify right side
    11,992.55x = 73,603,935.99
  5. Step 5: Solve for x
    x = 73,603,935.99/11,992.55
  6. Step 6: Final answer
    x = 6,137.47

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1.5x scale

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.