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Finding the Third Proportional to 11,761 and 15,973

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Solution

The third proportional to 11,761 and 15,973 is: 21,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761 : 15,973 = 15,973 : x
  2. Step 2: Convert to fraction form
    11,761/15,973 = 15,973/x
  3. Step 3: Cross multiply
    11,761x = 15,973 × 15,973
  4. Step 4: Simplify right side
    11,761x = 255,136,729
  5. Step 5: Solve for x
    x = 255,136,729/11,761
  6. Step 6: Final answer
    x = 21,693.46

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.