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Finding the Third Proportional to 27,816 and 43,132

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Solution

The third proportional to 27,816 and 43,132 is: 66,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,816 : 43,132 = 43,132 : x
  2. Step 2: Convert to fraction form
    27,816/43,132 = 43,132/x
  3. Step 3: Cross multiply
    27,816x = 43,132 × 43,132
  4. Step 4: Simplify right side
    27,816x = 1,860,369,424
  5. Step 5: Solve for x
    x = 1,860,369,424/27,816
  6. Step 6: Final answer
    x = 66,881.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.