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Finding the Third Proportional to 15,161 and 31,073

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Solution

The third proportional to 15,161 and 31,073 is: 63,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161 : 31,073 = 31,073 : x
  2. Step 2: Convert to fraction form
    15,161/31,073 = 31,073/x
  3. Step 3: Cross multiply
    15,161x = 31,073 × 31,073
  4. Step 4: Simplify right side
    15,161x = 965,531,329
  5. Step 5: Solve for x
    x = 965,531,329/15,161
  6. Step 6: Final answer
    x = 63,685.20

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.