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Finding the Third Proportional to 61,236 and 86,673

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Solution

The third proportional to 61,236 and 86,673 is: 122,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,236 : 86,673 = 86,673 : x
  2. Step 2: Convert to fraction form
    61,236/86,673 = 86,673/x
  3. Step 3: Cross multiply
    61,236x = 86,673 × 86,673
  4. Step 4: Simplify right side
    61,236x = 7,512,208,929
  5. Step 5: Solve for x
    x = 7,512,208,929/61,236
  6. Step 6: Final answer
    x = 122,676.35

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.