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Finding the Fourth Proportional to 33,456.40, 50,140.80 and 16,835.20

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Solution

The fourth proportional to 33,456.40, 50,140.80 and 16,835.20 is: 25,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,456.40 : 50,140.80 = 16,835.20 : x
  2. Step 2: Convert to fraction form
    33,456.40/50,140.80 = 16,835.20/x
  3. Step 3: Cross multiply
    33,456.40x = 50,140.80 × 16,835.20
  4. Step 4: Simplify right side
    33,456.40x = 844,130,396.16
  5. Step 5: Solve for x
    x = 844,130,396.16/33,456.40
  6. Step 6: Final answer
    x = 25,230.76

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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.