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Finding the Fourth Proportional to 22,486.21, 33,736.30 and 8,447.49

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Solution

The fourth proportional to 22,486.21, 33,736.30 and 8,447.49 is: 12,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.21 : 33,736.30 = 8,447.49 : x
  2. Step 2: Convert to fraction form
    22,486.21/33,736.30 = 8,447.49/x
  3. Step 3: Cross multiply
    22,486.21x = 33,736.30 × 8,447.49
  4. Step 4: Simplify right side
    22,486.21x = 284,987,035.77
  5. Step 5: Solve for x
    x = 284,987,035.77/22,486.21
  6. Step 6: Final answer
    x = 12,673.86

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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.