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Finding the Fourth Proportional to 12,906.52, 17,811 and 7,317.52

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Solution

The fourth proportional to 12,906.52, 17,811 and 7,317.52 is: 10,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.52 : 17,811 = 7,317.52 : x
  2. Step 2: Convert to fraction form
    12,906.52/17,811 = 7,317.52/x
  3. Step 3: Cross multiply
    12,906.52x = 17,811 × 7,317.52
  4. Step 4: Simplify right side
    12,906.52x = 130,332,348.72
  5. Step 5: Solve for x
    x = 130,332,348.72/12,906.52
  6. Step 6: Final answer
    x = 10,098.18

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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.