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Finding the Third Proportional to 1,649 and 2,173.50

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Solution

The third proportional to 1,649 and 2,173.50 is: 2,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649 : 2,173.50 = 2,173.50 : x
  2. Step 2: Convert to fraction form
    1,649/2,173.50 = 2,173.50/x
  3. Step 3: Cross multiply
    1,649x = 2,173.50 × 2,173.50
  4. Step 4: Simplify right side
    1,649x = 4,724,102.25
  5. Step 5: Solve for x
    x = 4,724,102.25/1,649
  6. Step 6: Final answer
    x = 2,864.83

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.