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Finding the Fourth Proportional to 12,843.91, 17,703.39 and 8,593.44

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Solution

The fourth proportional to 12,843.91, 17,703.39 and 8,593.44 is: 11,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.91 : 17,703.39 = 8,593.44 : x
  2. Step 2: Convert to fraction form
    12,843.91/17,703.39 = 8,593.44/x
  3. Step 3: Cross multiply
    12,843.91x = 17,703.39 × 8,593.44
  4. Step 4: Simplify right side
    12,843.91x = 152,133,019.76
  5. Step 5: Solve for x
    x = 152,133,019.76/12,843.91
  6. Step 6: Final answer
    x = 11,844.76

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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.