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Finding the Fourth Proportional to 33,458.40, 50,143.80 and 16,837.20

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Solution

The fourth proportional to 33,458.40, 50,143.80 and 16,837.20 is: 25,233.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,458.40 : 50,143.80 = 16,837.20 : x
  2. Step 2: Convert to fraction form
    33,458.40/50,143.80 = 16,837.20/x
  3. Step 3: Cross multiply
    33,458.40x = 50,143.80 × 16,837.20
  4. Step 4: Simplify right side
    33,458.40x = 844,281,189.36
  5. Step 5: Solve for x
    x = 844,281,189.36/33,458.40
  6. Step 6: Final answer
    x = 25,233.76

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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.