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Finding the Fourth Proportional to 11,141.52, 15,375.12 and 6,662.73

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Solution

The fourth proportional to 11,141.52, 15,375.12 and 6,662.73 is: 9,194.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.52 : 15,375.12 = 6,662.73 : x
  2. Step 2: Convert to fraction form
    11,141.52/15,375.12 = 6,662.73/x
  3. Step 3: Cross multiply
    11,141.52x = 15,375.12 × 6,662.73
  4. Step 4: Simplify right side
    11,141.52x = 102,440,239.96
  5. Step 5: Solve for x
    x = 102,440,239.96/11,141.52
  6. Step 6: Final answer
    x = 9,194.46

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.