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Finding the Third Proportional to 28,132 and 43,924

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Solution

The third proportional to 28,132 and 43,924 is: 68,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132 : 43,924 = 43,924 : x
  2. Step 2: Convert to fraction form
    28,132/43,924 = 43,924/x
  3. Step 3: Cross multiply
    28,132x = 43,924 × 43,924
  4. Step 4: Simplify right side
    28,132x = 1,929,317,776
  5. Step 5: Solve for x
    x = 1,929,317,776/28,132
  6. Step 6: Final answer
    x = 68,580.90

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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.