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Finding the Third Proportional to 27,010 and 42,275

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Solution

The third proportional to 27,010 and 42,275 is: 66,167.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,010 : 42,275 = 42,275 : x
  2. Step 2: Convert to fraction form
    27,010/42,275 = 42,275/x
  3. Step 3: Cross multiply
    27,010x = 42,275 × 42,275
  4. Step 4: Simplify right side
    27,010x = 1,787,175,625
  5. Step 5: Solve for x
    x = 1,787,175,625/27,010
  6. Step 6: Final answer
    x = 66,167.18

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.