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Finding the Third Proportional to 1,786.88 and 2,748.75

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Solution

The third proportional to 1,786.88 and 2,748.75 is: 4,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.88 : 2,748.75 = 2,748.75 : x
  2. Step 2: Convert to fraction form
    1,786.88/2,748.75 = 2,748.75/x
  3. Step 3: Cross multiply
    1,786.88x = 2,748.75 × 2,748.75
  4. Step 4: Simplify right side
    1,786.88x = 7,555,626.56
  5. Step 5: Solve for x
    x = 7,555,626.56/1,786.88
  6. Step 6: Final answer
    x = 4,228.40

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.