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Finding the Third Proportional to 21,795 and 34,827

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Solution

The third proportional to 21,795 and 34,827 is: 55,651.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795 : 34,827 = 34,827 : x
  2. Step 2: Convert to fraction form
    21,795/34,827 = 34,827/x
  3. Step 3: Cross multiply
    21,795x = 34,827 × 34,827
  4. Step 4: Simplify right side
    21,795x = 1,212,919,929
  5. Step 5: Solve for x
    x = 1,212,919,929/21,795
  6. Step 6: Final answer
    x = 55,651.29

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.