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Finding the Fourth Proportional to 33,818.40, 50,716.80 and 14,092.20

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Solution

The fourth proportional to 33,818.40, 50,716.80 and 14,092.20 is: 21,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,818.40 : 50,716.80 = 14,092.20 : x
  2. Step 2: Convert to fraction form
    33,818.40/50,716.80 = 14,092.20/x
  3. Step 3: Cross multiply
    33,818.40x = 50,716.80 × 14,092.20
  4. Step 4: Simplify right side
    33,818.40x = 714,711,288.96
  5. Step 5: Solve for x
    x = 714,711,288.96/33,818.40
  6. Step 6: Final answer
    x = 21,133.80

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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.