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Finding the Third Proportional to 552.45 and 706.22

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Solution

The third proportional to 552.45 and 706.22 is: 902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.45 : 706.22 = 706.22 : x
  2. Step 2: Convert to fraction form
    552.45/706.22 = 706.22/x
  3. Step 3: Cross multiply
    552.45x = 706.22 × 706.22
  4. Step 4: Simplify right side
    552.45x = 498,744.92
  5. Step 5: Solve for x
    x = 498,744.92/552.45
  6. Step 6: Final answer
    x = 902.80

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.