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Finding the Third Proportional to 708 and 882

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Solution

The third proportional to 708 and 882 is: 1,098.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    708 : 882 = 882 : x
  2. Step 2: Convert to fraction form
    708/882 = 882/x
  3. Step 3: Cross multiply
    708x = 882 × 882
  4. Step 4: Simplify right side
    708x = 777,924
  5. Step 5: Solve for x
    x = 777,924/708
  6. Step 6: Final answer
    x = 1,098.76

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Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.