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Finding the Third Proportional to 55,361 and 85,956

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Solution

The third proportional to 55,361 and 85,956 is: 133,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,361 : 85,956 = 85,956 : x
  2. Step 2: Convert to fraction form
    55,361/85,956 = 85,956/x
  3. Step 3: Cross multiply
    55,361x = 85,956 × 85,956
  4. Step 4: Simplify right side
    55,361x = 7,388,433,936
  5. Step 5: Solve for x
    x = 7,388,433,936/55,361
  6. Step 6: Final answer
    x = 133,459.18

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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.