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Finding the Third Proportional to 21,161.25 and 27,094.50

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Solution

The third proportional to 21,161.25 and 27,094.50 is: 34,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.25 : 27,094.50 = 27,094.50 : x
  2. Step 2: Convert to fraction form
    21,161.25/27,094.50 = 27,094.50/x
  3. Step 3: Cross multiply
    21,161.25x = 27,094.50 × 27,094.50
  4. Step 4: Simplify right side
    21,161.25x = 734,111,930.25
  5. Step 5: Solve for x
    x = 734,111,930.25/21,161.25
  6. Step 6: Final answer
    x = 34,691.33

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.