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Finding the Fourth Proportional to 31,754.43, 43,823.16 and 18,326.25

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Solution

The fourth proportional to 31,754.43, 43,823.16 and 18,326.25 is: 25,291.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,754.43 : 43,823.16 = 18,326.25 : x
  2. Step 2: Convert to fraction form
    31,754.43/43,823.16 = 18,326.25/x
  3. Step 3: Cross multiply
    31,754.43x = 43,823.16 × 18,326.25
  4. Step 4: Simplify right side
    31,754.43x = 803,114,185.95
  5. Step 5: Solve for x
    x = 803,114,185.95/31,754.43
  6. Step 6: Final answer
    x = 25,291.41

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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.