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Finding the Fourth Proportional to 12,606.18, 18,906.83 and 4,813.14

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Solution

The fourth proportional to 12,606.18, 18,906.83 and 4,813.14 is: 7,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.18 : 18,906.83 = 4,813.14 : x
  2. Step 2: Convert to fraction form
    12,606.18/18,906.83 = 4,813.14/x
  3. Step 3: Cross multiply
    12,606.18x = 18,906.83 × 4,813.14
  4. Step 4: Simplify right side
    12,606.18x = 91,001,219.75
  5. Step 5: Solve for x
    x = 91,001,219.75/12,606.18
  6. Step 6: Final answer
    x = 7,218.78

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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.