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Finding the Third Proportional to 38,318 and 51,141

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Solution

The third proportional to 38,318 and 51,141 is: 68,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,318 : 51,141 = 51,141 : x
  2. Step 2: Convert to fraction form
    38,318/51,141 = 51,141/x
  3. Step 3: Cross multiply
    38,318x = 51,141 × 51,141
  4. Step 4: Simplify right side
    38,318x = 2,615,401,881
  5. Step 5: Solve for x
    x = 2,615,401,881/38,318
  6. Step 6: Final answer
    x = 68,255.18

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.