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Finding the Fourth Proportional to 11,963.81, 17,946.44 and 3,644.43

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Solution

The fourth proportional to 11,963.81, 17,946.44 and 3,644.43 is: 5,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.81 : 17,946.44 = 3,644.43 : x
  2. Step 2: Convert to fraction form
    11,963.81/17,946.44 = 3,644.43/x
  3. Step 3: Cross multiply
    11,963.81x = 17,946.44 × 3,644.43
  4. Step 4: Simplify right side
    11,963.81x = 65,404,526.11
  5. Step 5: Solve for x
    x = 65,404,526.11/11,963.81
  6. Step 6: Final answer
    x = 5,466.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.