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Finding the Fourth Proportional to 36,910.70, 50,936.75 and 20,143.70

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Solution

The fourth proportional to 36,910.70, 50,936.75 and 20,143.70 is: 27,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,910.70 : 50,936.75 = 20,143.70 : x
  2. Step 2: Convert to fraction form
    36,910.70/50,936.75 = 20,143.70/x
  3. Step 3: Cross multiply
    36,910.70x = 50,936.75 × 20,143.70
  4. Step 4: Simplify right side
    36,910.70x = 1,026,054,610.98
  5. Step 5: Solve for x
    x = 1,026,054,610.98/36,910.70
  6. Step 6: Final answer
    x = 27,798.30

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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.