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Finding the Third Proportional to 625.03 and 851.34

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Solution

The third proportional to 625.03 and 851.34 is: 1,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.03 : 851.34 = 851.34 : x
  2. Step 2: Convert to fraction form
    625.03/851.34 = 851.34/x
  3. Step 3: Cross multiply
    625.03x = 851.34 × 851.34
  4. Step 4: Simplify right side
    625.03x = 724,786.18
  5. Step 5: Solve for x
    x = 724,786.18/625.03
  6. Step 6: Final answer
    x = 1,159.60

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.