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Finding the Third Proportional to 42,108.75 and 62,979.75

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Solution

The third proportional to 42,108.75 and 62,979.75 is: 94,195.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,108.75 : 62,979.75 = 62,979.75 : x
  2. Step 2: Convert to fraction form
    42,108.75/62,979.75 = 62,979.75/x
  3. Step 3: Cross multiply
    42,108.75x = 62,979.75 × 62,979.75
  4. Step 4: Simplify right side
    42,108.75x = 3,966,448,910.06
  5. Step 5: Solve for x
    x = 3,966,448,910.06/42,108.75
  6. Step 6: Final answer
    x = 94,195.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.