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Finding the Fourth Proportional to 9,087.45, 12,540.80 and 5,108.33

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Solution

The fourth proportional to 9,087.45, 12,540.80 and 5,108.33 is: 7,049.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.45 : 12,540.80 = 5,108.33 : x
  2. Step 2: Convert to fraction form
    9,087.45/12,540.80 = 5,108.33/x
  3. Step 3: Cross multiply
    9,087.45x = 12,540.80 × 5,108.33
  4. Step 4: Simplify right side
    9,087.45x = 64,062,544.86
  5. Step 5: Solve for x
    x = 64,062,544.86/9,087.45
  6. Step 6: Final answer
    x = 7,049.56

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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.