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Finding the Third Proportional to 562.75 and 851.75

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Solution

The third proportional to 562.75 and 851.75 is: 1,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.75 : 851.75 = 851.75 : x
  2. Step 2: Convert to fraction form
    562.75/851.75 = 851.75/x
  3. Step 3: Cross multiply
    562.75x = 851.75 × 851.75
  4. Step 4: Simplify right side
    562.75x = 725,478.06
  5. Step 5: Solve for x
    x = 725,478.06/562.75
  6. Step 6: Final answer
    x = 1,289.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.