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Finding the Fourth Proportional to 33,649.40, 50,474.10 and 11,487.80

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Solution

The fourth proportional to 33,649.40, 50,474.10 and 11,487.80 is: 17,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,649.40 : 50,474.10 = 11,487.80 : x
  2. Step 2: Convert to fraction form
    33,649.40/50,474.10 = 11,487.80/x
  3. Step 3: Cross multiply
    33,649.40x = 50,474.10 × 11,487.80
  4. Step 4: Simplify right side
    33,649.40x = 579,836,365.98
  5. Step 5: Solve for x
    x = 579,836,365.98/33,649.40
  6. Step 6: Final answer
    x = 17,231.70

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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.