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Finding the Fourth Proportional to 18,351.96, 25,325.72 and 9,968.46

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Solution

The fourth proportional to 18,351.96, 25,325.72 and 9,968.46 is: 13,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.96 : 25,325.72 = 9,968.46 : x
  2. Step 2: Convert to fraction form
    18,351.96/25,325.72 = 9,968.46/x
  3. Step 3: Cross multiply
    18,351.96x = 25,325.72 × 9,968.46
  4. Step 4: Simplify right side
    18,351.96x = 252,458,426.79
  5. Step 5: Solve for x
    x = 252,458,426.79/18,351.96
  6. Step 6: Final answer
    x = 13,756.48

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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.