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Finding the Fourth Proportional to 8,668.13, 11,963.63 and 4,942.13

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Solution

The fourth proportional to 8,668.13, 11,963.63 and 4,942.13 is: 6,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.13 : 11,963.63 = 4,942.13 : x
  2. Step 2: Convert to fraction form
    8,668.13/11,963.63 = 4,942.13/x
  3. Step 3: Cross multiply
    8,668.13x = 11,963.63 × 4,942.13
  4. Step 4: Simplify right side
    8,668.13x = 59,125,767.27
  5. Step 5: Solve for x
    x = 59,125,767.27/8,668.13
  6. Step 6: Final answer
    x = 6,821.06

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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.