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Finding the Fourth Proportional to 8,372.45, 12,560.99 and 6,808.59

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Solution

The fourth proportional to 8,372.45, 12,560.99 and 6,808.59 is: 10,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.45 : 12,560.99 = 6,808.59 : x
  2. Step 2: Convert to fraction form
    8,372.45/12,560.99 = 6,808.59/x
  3. Step 3: Cross multiply
    8,372.45x = 12,560.99 × 6,808.59
  4. Step 4: Simplify right side
    8,372.45x = 85,522,630.90
  5. Step 5: Solve for x
    x = 85,522,630.90/8,372.45
  6. Step 6: Final answer
    x = 10,214.77

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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.