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Finding the Fourth Proportional to 31,279.59, 46,912.91 and 11,544.66

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Solution

The fourth proportional to 31,279.59, 46,912.91 and 11,544.66 is: 17,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.59 : 46,912.91 = 11,544.66 : x
  2. Step 2: Convert to fraction form
    31,279.59/46,912.91 = 11,544.66/x
  3. Step 3: Cross multiply
    31,279.59x = 46,912.91 × 11,544.66
  4. Step 4: Simplify right side
    31,279.59x = 541,593,537.84
  5. Step 5: Solve for x
    x = 541,593,537.84/31,279.59
  6. Step 6: Final answer
    x = 17,314.60

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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.