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Finding the Third Proportional to 43,553 and 65,161

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Solution

The third proportional to 43,553 and 65,161 is: 97,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,553 : 65,161 = 65,161 : x
  2. Step 2: Convert to fraction form
    43,553/65,161 = 65,161/x
  3. Step 3: Cross multiply
    43,553x = 65,161 × 65,161
  4. Step 4: Simplify right side
    43,553x = 4,245,955,921
  5. Step 5: Solve for x
    x = 4,245,955,921/43,553
  6. Step 6: Final answer
    x = 97,489.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.