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Finding the Fourth Proportional to 31,633.21, 43,652.49 and 17,292.78

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Solution

The fourth proportional to 31,633.21, 43,652.49 and 17,292.78 is: 23,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,633.21 : 43,652.49 = 17,292.78 : x
  2. Step 2: Convert to fraction form
    31,633.21/43,652.49 = 17,292.78/x
  3. Step 3: Cross multiply
    31,633.21x = 43,652.49 × 17,292.78
  4. Step 4: Simplify right side
    31,633.21x = 754,872,841.17
  5. Step 5: Solve for x
    x = 754,872,841.17/31,633.21
  6. Step 6: Final answer
    x = 23,863.30

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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.