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Finding the Third Proportional to 62,992 and 85,176

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Solution

The third proportional to 62,992 and 85,176 is: 115,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,992 : 85,176 = 85,176 : x
  2. Step 2: Convert to fraction form
    62,992/85,176 = 85,176/x
  3. Step 3: Cross multiply
    62,992x = 85,176 × 85,176
  4. Step 4: Simplify right side
    62,992x = 7,254,950,976
  5. Step 5: Solve for x
    x = 7,254,950,976/62,992
  6. Step 6: Final answer
    x = 115,172.58

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.