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Finding the Fourth Proportional to 31,934.17, 44,069.16 and 18,513.20

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Solution

The fourth proportional to 31,934.17, 44,069.16 and 18,513.20 is: 25,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,934.17 : 44,069.16 = 18,513.20 : x
  2. Step 2: Convert to fraction form
    31,934.17/44,069.16 = 18,513.20/x
  3. Step 3: Cross multiply
    31,934.17x = 44,069.16 × 18,513.20
  4. Step 4: Simplify right side
    31,934.17x = 815,861,172.91
  5. Step 5: Solve for x
    x = 815,861,172.91/31,934.17
  6. Step 6: Final answer
    x = 25,548.22

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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.