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Finding the Third Proportional to 705.75 and 1,026.75

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Solution

The third proportional to 705.75 and 1,026.75 is: 1,493.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.75 : 1,026.75 = 1,026.75 : x
  2. Step 2: Convert to fraction form
    705.75/1,026.75 = 1,026.75/x
  3. Step 3: Cross multiply
    705.75x = 1,026.75 × 1,026.75
  4. Step 4: Simplify right side
    705.75x = 1,054,215.56
  5. Step 5: Solve for x
    x = 1,054,215.56/705.75
  6. Step 6: Final answer
    x = 1,493.75

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.