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Finding the Third Proportional to 11,071.69 and 15,506.44

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Solution

The third proportional to 11,071.69 and 15,506.44 is: 21,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071.69 : 15,506.44 = 15,506.44 : x
  2. Step 2: Convert to fraction form
    11,071.69/15,506.44 = 15,506.44/x
  3. Step 3: Cross multiply
    11,071.69x = 15,506.44 × 15,506.44
  4. Step 4: Simplify right side
    11,071.69x = 240,449,603.94
  5. Step 5: Solve for x
    x = 240,449,603.94/11,071.69
  6. Step 6: Final answer
    x = 21,717.52

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.