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Finding the Fourth Proportional to 33,155.50, 45,754.68 and 18,251.50

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Solution

The fourth proportional to 33,155.50, 45,754.68 and 18,251.50 is: 25,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,155.50 : 45,754.68 = 18,251.50 : x
  2. Step 2: Convert to fraction form
    33,155.50/45,754.68 = 18,251.50/x
  3. Step 3: Cross multiply
    33,155.50x = 45,754.68 × 18,251.50
  4. Step 4: Simplify right side
    33,155.50x = 835,091,542.02
  5. Step 5: Solve for x
    x = 835,091,542.02/33,155.50
  6. Step 6: Final answer
    x = 25,187.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.