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Finding the Third Proportional to 52,462 and 78,891

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Solution

The third proportional to 52,462 and 78,891 is: 118,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,462 : 78,891 = 78,891 : x
  2. Step 2: Convert to fraction form
    52,462/78,891 = 78,891/x
  3. Step 3: Cross multiply
    52,462x = 78,891 × 78,891
  4. Step 4: Simplify right side
    52,462x = 6,223,789,881
  5. Step 5: Solve for x
    x = 6,223,789,881/52,462
  6. Step 6: Final answer
    x = 118,634.25

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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.