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Finding the Fourth Proportional to 12,379.50, 17,083.40 and 7,073.97

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Solution

The fourth proportional to 12,379.50, 17,083.40 and 7,073.97 is: 9,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.50 : 17,083.40 = 7,073.97 : x
  2. Step 2: Convert to fraction form
    12,379.50/17,083.40 = 7,073.97/x
  3. Step 3: Cross multiply
    12,379.50x = 17,083.40 × 7,073.97
  4. Step 4: Simplify right side
    12,379.50x = 120,847,459.10
  5. Step 5: Solve for x
    x = 120,847,459.10/12,379.50
  6. Step 6: Final answer
    x = 9,761.90

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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.