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Finding the Third Proportional to 61,330 and 113,912

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Solution

The third proportional to 61,330 and 113,912 is: 211,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,330 : 113,912 = 113,912 : x
  2. Step 2: Convert to fraction form
    61,330/113,912 = 113,912/x
  3. Step 3: Cross multiply
    61,330x = 113,912 × 113,912
  4. Step 4: Simplify right side
    61,330x = 12,975,943,744
  5. Step 5: Solve for x
    x = 12,975,943,744/61,330
  6. Step 6: Final answer
    x = 211,575.80

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.