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Finding the Fourth Proportional to 33,456.60, 50,168.70 and 18,649.80

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Solution

The fourth proportional to 33,456.60, 50,168.70 and 18,649.80 is: 27,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,456.60 : 50,168.70 = 18,649.80 : x
  2. Step 2: Convert to fraction form
    33,456.60/50,168.70 = 18,649.80/x
  3. Step 3: Cross multiply
    33,456.60x = 50,168.70 × 18,649.80
  4. Step 4: Simplify right side
    33,456.60x = 935,636,221.26
  5. Step 5: Solve for x
    x = 935,636,221.26/33,456.60
  6. Step 6: Final answer
    x = 27,965.67

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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.