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Finding the Fourth Proportional to 12,207.69, 16,846.61 and 6,618.69

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Solution

The fourth proportional to 12,207.69, 16,846.61 and 6,618.69 is: 9,133.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.69 : 16,846.61 = 6,618.69 : x
  2. Step 2: Convert to fraction form
    12,207.69/16,846.61 = 6,618.69/x
  3. Step 3: Cross multiply
    12,207.69x = 16,846.61 × 6,618.69
  4. Step 4: Simplify right side
    12,207.69x = 111,502,489.14
  5. Step 5: Solve for x
    x = 111,502,489.14/12,207.69
  6. Step 6: Final answer
    x = 9,133.79

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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.