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Finding the Fourth Proportional to 8,125.61, 11,213.20 and 4,540.62

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Solution

The fourth proportional to 8,125.61, 11,213.20 and 4,540.62 is: 6,265.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.61 : 11,213.20 = 4,540.62 : x
  2. Step 2: Convert to fraction form
    8,125.61/11,213.20 = 4,540.62/x
  3. Step 3: Cross multiply
    8,125.61x = 11,213.20 × 4,540.62
  4. Step 4: Simplify right side
    8,125.61x = 50,914,871.50
  5. Step 5: Solve for x
    x = 50,914,871.50/8,125.61
  6. Step 6: Final answer
    x = 6,265.98

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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.