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Finding the Fourth Proportional to 33,687.76, 50,551.08 and 18,696.28

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Solution

The fourth proportional to 33,687.76, 50,551.08 and 18,696.28 is: 28,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,687.76 : 50,551.08 = 18,696.28 : x
  2. Step 2: Convert to fraction form
    33,687.76/50,551.08 = 18,696.28/x
  3. Step 3: Cross multiply
    33,687.76x = 50,551.08 × 18,696.28
  4. Step 4: Simplify right side
    33,687.76x = 945,117,145.98
  5. Step 5: Solve for x
    x = 945,117,145.98/33,687.76
  6. Step 6: Final answer
    x = 28,055.21

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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.