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Finding the Third Proportional to 27,817 and 43,045

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Solution

The third proportional to 27,817 and 43,045 is: 66,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817 : 43,045 = 43,045 : x
  2. Step 2: Convert to fraction form
    27,817/43,045 = 43,045/x
  3. Step 3: Cross multiply
    27,817x = 43,045 × 43,045
  4. Step 4: Simplify right side
    27,817x = 1,852,872,025
  5. Step 5: Solve for x
    x = 1,852,872,025/27,817
  6. Step 6: Final answer
    x = 66,609.34

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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.