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Finding the Third Proportional to 60,918 and 91,376

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Solution

The third proportional to 60,918 and 91,376 is: 137,062.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,918 : 91,376 = 91,376 : x
  2. Step 2: Convert to fraction form
    60,918/91,376 = 91,376/x
  3. Step 3: Cross multiply
    60,918x = 91,376 × 91,376
  4. Step 4: Simplify right side
    60,918x = 8,349,573,376
  5. Step 5: Solve for x
    x = 8,349,573,376/60,918
  6. Step 6: Final answer
    x = 137,062.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.