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Finding the Fourth Proportional to 36,649.61, 54,990.81 and 21,067.23

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Solution

The fourth proportional to 36,649.61, 54,990.81 and 21,067.23 is: 31,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,649.61 : 54,990.81 = 21,067.23 : x
  2. Step 2: Convert to fraction form
    36,649.61/54,990.81 = 21,067.23/x
  3. Step 3: Cross multiply
    36,649.61x = 54,990.81 × 21,067.23
  4. Step 4: Simplify right side
    36,649.61x = 1,158,504,042.16
  5. Step 5: Solve for x
    x = 1,158,504,042.16/36,649.61
  6. Step 6: Final answer
    x = 31,610.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.