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Finding the Fourth Proportional to 36,753.70, 50,721.24 and 20,838.82

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Solution

The fourth proportional to 36,753.70, 50,721.24 and 20,838.82 is: 28,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,753.70 : 50,721.24 = 20,838.82 : x
  2. Step 2: Convert to fraction form
    36,753.70/50,721.24 = 20,838.82/x
  3. Step 3: Cross multiply
    36,753.70x = 50,721.24 × 20,838.82
  4. Step 4: Simplify right side
    36,753.70x = 1,056,970,790.54
  5. Step 5: Solve for x
    x = 1,056,970,790.54/36,753.70
  6. Step 6: Final answer
    x = 28,758.21

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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.