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Finding the Fourth Proportional to 18,351.84, 25,324.89 and 9,968.34

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Solution

The fourth proportional to 18,351.84, 25,324.89 and 9,968.34 is: 13,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.84 : 25,324.89 = 9,968.34 : x
  2. Step 2: Convert to fraction form
    18,351.84/25,324.89 = 9,968.34/x
  3. Step 3: Cross multiply
    18,351.84x = 25,324.89 × 9,968.34
  4. Step 4: Simplify right side
    18,351.84x = 252,447,113.98
  5. Step 5: Solve for x
    x = 252,447,113.98/18,351.84
  6. Step 6: Final answer
    x = 13,755.96

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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.