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Finding the Fourth Proportional to 11,375.28, 17,044.16 and 6,934.10

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Solution

The fourth proportional to 11,375.28, 17,044.16 and 6,934.10 is: 10,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,375.28 : 17,044.16 = 6,934.10 : x
  2. Step 2: Convert to fraction form
    11,375.28/17,044.16 = 6,934.10/x
  3. Step 3: Cross multiply
    11,375.28x = 17,044.16 × 6,934.10
  4. Step 4: Simplify right side
    11,375.28x = 118,185,789.96
  5. Step 5: Solve for x
    x = 118,185,789.96/11,375.28
  6. Step 6: Final answer
    x = 10,389.70

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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.