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Finding the Fourth Proportional to 33,116.40, 49,674.60 and 10,933.20

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Solution

The fourth proportional to 33,116.40, 49,674.60 and 10,933.20 is: 16,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,116.40 : 49,674.60 = 10,933.20 : x
  2. Step 2: Convert to fraction form
    33,116.40/49,674.60 = 10,933.20/x
  3. Step 3: Cross multiply
    33,116.40x = 49,674.60 × 10,933.20
  4. Step 4: Simplify right side
    33,116.40x = 543,102,336.72
  5. Step 5: Solve for x
    x = 543,102,336.72/33,116.40
  6. Step 6: Final answer
    x = 16,399.80

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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.