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Finding the Third Proportional to 11,128.13 and 17,330.44

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Solution

The third proportional to 11,128.13 and 17,330.44 is: 26,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.13 : 17,330.44 = 17,330.44 : x
  2. Step 2: Convert to fraction form
    11,128.13/17,330.44 = 17,330.44/x
  3. Step 3: Cross multiply
    11,128.13x = 17,330.44 × 17,330.44
  4. Step 4: Simplify right side
    11,128.13x = 300,344,063.94
  5. Step 5: Solve for x
    x = 300,344,063.94/11,128.13
  6. Step 6: Final answer
    x = 26,989.64

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.