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Finding the Third Proportional to 1,755 and 3,863.50

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Solution

The third proportional to 1,755 and 3,863.50 is: 8,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755 : 3,863.50 = 3,863.50 : x
  2. Step 2: Convert to fraction form
    1,755/3,863.50 = 3,863.50/x
  3. Step 3: Cross multiply
    1,755x = 3,863.50 × 3,863.50
  4. Step 4: Simplify right side
    1,755x = 14,926,632.25
  5. Step 5: Solve for x
    x = 14,926,632.25/1,755
  6. Step 6: Final answer
    x = 8,505.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.