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Finding the Third Proportional to 699 and 1,250

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Solution

The third proportional to 699 and 1,250 is: 2,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    699 : 1,250 = 1,250 : x
  2. Step 2: Convert to fraction form
    699/1,250 = 1,250/x
  3. Step 3: Cross multiply
    699x = 1,250 × 1,250
  4. Step 4: Simplify right side
    699x = 1,562,500
  5. Step 5: Solve for x
    x = 1,562,500/699
  6. Step 6: Final answer
    x = 2,235.34

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.