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Finding the Fourth Proportional to 31,997.88, 44,136.51 and 19,422.63

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Solution

The fourth proportional to 31,997.88, 44,136.51 and 19,422.63 is: 26,790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,997.88 : 44,136.51 = 19,422.63 : x
  2. Step 2: Convert to fraction form
    31,997.88/44,136.51 = 19,422.63/x
  3. Step 3: Cross multiply
    31,997.88x = 44,136.51 × 19,422.63
  4. Step 4: Simplify right side
    31,997.88x = 857,247,103.22
  5. Step 5: Solve for x
    x = 857,247,103.22/31,997.88
  6. Step 6: Final answer
    x = 26,790.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.