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Finding the Fourth Proportional to 18,832.88, 25,989.96 and 10,450.16

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Solution

The fourth proportional to 18,832.88, 25,989.96 and 10,450.16 is: 14,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.88 : 25,989.96 = 10,450.16 : x
  2. Step 2: Convert to fraction form
    18,832.88/25,989.96 = 10,450.16/x
  3. Step 3: Cross multiply
    18,832.88x = 25,989.96 × 10,450.16
  4. Step 4: Simplify right side
    18,832.88x = 271,599,240.39
  5. Step 5: Solve for x
    x = 271,599,240.39/18,832.88
  6. Step 6: Final answer
    x = 14,421.55

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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.