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Finding the Third Proportional to 62,916 and 91,779

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Solution

The third proportional to 62,916 and 91,779 is: 133,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,916 : 91,779 = 91,779 : x
  2. Step 2: Convert to fraction form
    62,916/91,779 = 91,779/x
  3. Step 3: Cross multiply
    62,916x = 91,779 × 91,779
  4. Step 4: Simplify right side
    62,916x = 8,423,384,841
  5. Step 5: Solve for x
    x = 8,423,384,841/62,916
  6. Step 6: Final answer
    x = 133,883.03

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.