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Finding the Fourth Proportional to 12,843.90, 17,703.36 and 8,593.43

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Solution

The fourth proportional to 12,843.90, 17,703.36 and 8,593.43 is: 11,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.90 : 17,703.36 = 8,593.43 : x
  2. Step 2: Convert to fraction form
    12,843.90/17,703.36 = 8,593.43/x
  3. Step 3: Cross multiply
    12,843.90x = 17,703.36 × 8,593.43
  4. Step 4: Simplify right side
    12,843.90x = 152,132,496.41
  5. Step 5: Solve for x
    x = 152,132,496.41/12,843.90
  6. Step 6: Final answer
    x = 11,844.73

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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.