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Finding the Third Proportional to 1,748.75 and 2,639.97

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Solution

The third proportional to 1,748.75 and 2,639.97 is: 3,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.75 : 2,639.97 = 2,639.97 : x
  2. Step 2: Convert to fraction form
    1,748.75/2,639.97 = 2,639.97/x
  3. Step 3: Cross multiply
    1,748.75x = 2,639.97 × 2,639.97
  4. Step 4: Simplify right side
    1,748.75x = 6,969,435.00
  5. Step 5: Solve for x
    x = 6,969,435.00/1,748.75
  6. Step 6: Final answer
    x = 3,985.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.