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Finding the Fourth Proportional to 33,160.82, 45,744.82 and 20,563.70

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Solution

The fourth proportional to 33,160.82, 45,744.82 and 20,563.70 is: 28,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,160.82 : 45,744.82 = 20,563.70 : x
  2. Step 2: Convert to fraction form
    33,160.82/45,744.82 = 20,563.70/x
  3. Step 3: Cross multiply
    33,160.82x = 45,744.82 × 20,563.70
  4. Step 4: Simplify right side
    33,160.82x = 940,682,474.90
  5. Step 5: Solve for x
    x = 940,682,474.90/33,160.82
  6. Step 6: Final answer
    x = 28,367.29

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1.5x scale

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.