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Finding the Third Proportional to 38,328 and 51,156

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Solution

The third proportional to 38,328 and 51,156 is: 68,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,328 : 51,156 = 51,156 : x
  2. Step 2: Convert to fraction form
    38,328/51,156 = 51,156/x
  3. Step 3: Cross multiply
    38,328x = 51,156 × 51,156
  4. Step 4: Simplify right side
    38,328x = 2,616,936,336
  5. Step 5: Solve for x
    x = 2,616,936,336/38,328
  6. Step 6: Final answer
    x = 68,277.40

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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.