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Finding the Fourth Proportional to 18,351.64, 25,325.13 and 9,968.14

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Solution

The fourth proportional to 18,351.64, 25,325.13 and 9,968.14 is: 13,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.64 : 25,325.13 = 9,968.14 : x
  2. Step 2: Convert to fraction form
    18,351.64/25,325.13 = 9,968.14/x
  3. Step 3: Cross multiply
    18,351.64x = 25,325.13 × 9,968.14
  4. Step 4: Simplify right side
    18,351.64x = 252,444,441.36
  5. Step 5: Solve for x
    x = 252,444,441.36/18,351.64
  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.