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Finding the Third Proportional to 66,661.50 and 93,755

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Solution

The third proportional to 66,661.50 and 93,755 is: 131,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,661.50 : 93,755 = 93,755 : x
  2. Step 2: Convert to fraction form
    66,661.50/93,755 = 93,755/x
  3. Step 3: Cross multiply
    66,661.50x = 93,755 × 93,755
  4. Step 4: Simplify right side
    66,661.50x = 8,790,000,025
  5. Step 5: Solve for x
    x = 8,790,000,025/66,661.50
  6. Step 6: Final answer
    x = 131,860.22

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.