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Finding the Fourth Proportional to 13,070.85, 18,035.68 and 8,596.41

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Solution

The fourth proportional to 13,070.85, 18,035.68 and 8,596.41 is: 11,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.85 : 18,035.68 = 8,596.41 : x
  2. Step 2: Convert to fraction form
    13,070.85/18,035.68 = 8,596.41/x
  3. Step 3: Cross multiply
    13,070.85x = 18,035.68 × 8,596.41
  4. Step 4: Simplify right side
    13,070.85x = 155,042,099.91
  5. Step 5: Solve for x
    x = 155,042,099.91/13,070.85
  6. Step 6: Final answer
    x = 11,861.67

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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.