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Finding the Fourth Proportional to 18,861.26, 26,029.08 and 10,363.91

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Solution

The fourth proportional to 18,861.26, 26,029.08 and 10,363.91 is: 14,302.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.26 : 26,029.08 = 10,363.91 : x
  2. Step 2: Convert to fraction form
    18,861.26/26,029.08 = 10,363.91/x
  3. Step 3: Cross multiply
    18,861.26x = 26,029.08 × 10,363.91
  4. Step 4: Simplify right side
    18,861.26x = 269,762,912.36
  5. Step 5: Solve for x
    x = 269,762,912.36/18,861.26
  6. Step 6: Final answer
    x = 14,302.49

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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.