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Finding the Fourth Proportional to 33,388.92, 50,086.88 and 13,664.32

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Solution

The fourth proportional to 33,388.92, 50,086.88 and 13,664.32 is: 20,497.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,388.92 : 50,086.88 = 13,664.32 : x
  2. Step 2: Convert to fraction form
    33,388.92/50,086.88 = 13,664.32/x
  3. Step 3: Cross multiply
    33,388.92x = 50,086.88 × 13,664.32
  4. Step 4: Simplify right side
    33,388.92x = 684,403,156.12
  5. Step 5: Solve for x
    x = 684,403,156.12/33,388.92
  6. Step 6: Final answer
    x = 20,497.91

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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.