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Finding the Fourth Proportional to 26,085.69, 39,131.64 and 8,310.11

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Solution

The fourth proportional to 26,085.69, 39,131.64 and 8,310.11 is: 12,466.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,085.69 : 39,131.64 = 8,310.11 : x
  2. Step 2: Convert to fraction form
    26,085.69/39,131.64 = 8,310.11/x
  3. Step 3: Cross multiply
    26,085.69x = 39,131.64 × 8,310.11
  4. Step 4: Simplify right side
    26,085.69x = 325,188,232.88
  5. Step 5: Solve for x
    x = 325,188,232.88/26,085.69
  6. Step 6: Final answer
    x = 12,466.15

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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.