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Finding the Third Proportional to 67,167 and 91,276

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Solution

The third proportional to 67,167 and 91,276 is: 124,038.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,167 : 91,276 = 91,276 : x
  2. Step 2: Convert to fraction form
    67,167/91,276 = 91,276/x
  3. Step 3: Cross multiply
    67,167x = 91,276 × 91,276
  4. Step 4: Simplify right side
    67,167x = 8,331,308,176
  5. Step 5: Solve for x
    x = 8,331,308,176/67,167
  6. Step 6: Final answer
    x = 124,038.71

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.