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Finding the Third Proportional to 34,820 and 75,912

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Solution

The third proportional to 34,820 and 75,912 is: 165,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,820 : 75,912 = 75,912 : x
  2. Step 2: Convert to fraction form
    34,820/75,912 = 75,912/x
  3. Step 3: Cross multiply
    34,820x = 75,912 × 75,912
  4. Step 4: Simplify right side
    34,820x = 5,762,631,744
  5. Step 5: Solve for x
    x = 5,762,631,744/34,820
  6. Step 6: Final answer
    x = 165,497.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.