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Finding the Third Proportional to 1,644.75 and 2,133.88

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Solution

The third proportional to 1,644.75 and 2,133.88 is: 2,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.75 : 2,133.88 = 2,133.88 : x
  2. Step 2: Convert to fraction form
    1,644.75/2,133.88 = 2,133.88/x
  3. Step 3: Cross multiply
    1,644.75x = 2,133.88 × 2,133.88
  4. Step 4: Simplify right side
    1,644.75x = 4,553,422.52
  5. Step 5: Solve for x
    x = 4,553,422.52/1,644.75
  6. Step 6: Final answer
    x = 2,768.46

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.