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Finding the Third Proportional to 27,772 and 43,014

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Solution

The third proportional to 27,772 and 43,014 is: 66,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772 : 43,014 = 43,014 : x
  2. Step 2: Convert to fraction form
    27,772/43,014 = 43,014/x
  3. Step 3: Cross multiply
    27,772x = 43,014 × 43,014
  4. Step 4: Simplify right side
    27,772x = 1,850,204,196
  5. Step 5: Solve for x
    x = 1,850,204,196/27,772
  6. Step 6: Final answer
    x = 66,621.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.