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Finding the Fourth Proportional to 12,379.40, 17,083.27 and 7,073.88

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Solution

The fourth proportional to 12,379.40, 17,083.27 and 7,073.88 is: 9,761.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.40 : 17,083.27 = 7,073.88 : x
  2. Step 2: Convert to fraction form
    12,379.40/17,083.27 = 7,073.88/x
  3. Step 3: Cross multiply
    12,379.40x = 17,083.27 × 7,073.88
  4. Step 4: Simplify right side
    12,379.40x = 120,845,042.86
  5. Step 5: Solve for x
    x = 120,845,042.86/12,379.40
  6. Step 6: Final answer
    x = 9,761.78

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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.