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Finding the Fourth Proportional to 8,615.73, 12,912.60 and 7,500.60

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Solution

The fourth proportional to 8,615.73, 12,912.60 and 7,500.60 is: 11,241.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.73 : 12,912.60 = 7,500.60 : x
  2. Step 2: Convert to fraction form
    8,615.73/12,912.60 = 7,500.60/x
  3. Step 3: Cross multiply
    8,615.73x = 12,912.60 × 7,500.60
  4. Step 4: Simplify right side
    8,615.73x = 96,852,247.56
  5. Step 5: Solve for x
    x = 96,852,247.56/8,615.73
  6. Step 6: Final answer
    x = 11,241.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.