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Finding the Third Proportional to 13,165 and 31,079

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Solution

The third proportional to 13,165 and 31,079 is: 73,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165 : 31,079 = 31,079 : x
  2. Step 2: Convert to fraction form
    13,165/31,079 = 31,079/x
  3. Step 3: Cross multiply
    13,165x = 31,079 × 31,079
  4. Step 4: Simplify right side
    13,165x = 965,904,241
  5. Step 5: Solve for x
    x = 965,904,241/13,165
  6. Step 6: Final answer
    x = 73,369.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.