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Finding the Fourth Proportional to 36,866.67, 50,879.66 and 21,764.31

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Solution

The fourth proportional to 36,866.67, 50,879.66 and 21,764.31 is: 30,036.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,866.67 : 50,879.66 = 21,764.31 : x
  2. Step 2: Convert to fraction form
    36,866.67/50,879.66 = 21,764.31/x
  3. Step 3: Cross multiply
    36,866.67x = 50,879.66 × 21,764.31
  4. Step 4: Simplify right side
    36,866.67x = 1,107,360,692.93
  5. Step 5: Solve for x
    x = 1,107,360,692.93/36,866.67
  6. Step 6: Final answer
    x = 30,036.91

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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.