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Finding the Fourth Proportional to 31,797.15, 43,877.86 and 17,648.88

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Solution

The fourth proportional to 31,797.15, 43,877.86 and 17,648.88 is: 24,354.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,797.15 : 43,877.86 = 17,648.88 : x
  2. Step 2: Convert to fraction form
    31,797.15/43,877.86 = 17,648.88/x
  3. Step 3: Cross multiply
    31,797.15x = 43,877.86 × 17,648.88
  4. Step 4: Simplify right side
    31,797.15x = 774,395,085.80
  5. Step 5: Solve for x
    x = 774,395,085.80/31,797.15
  6. Step 6: Final answer
    x = 24,354.23

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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.