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Finding the Third Proportional to 265.50 and 579

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Solution

The third proportional to 265.50 and 579 is: 1,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.50 : 579 = 579 : x
  2. Step 2: Convert to fraction form
    265.50/579 = 579/x
  3. Step 3: Cross multiply
    265.50x = 579 × 579
  4. Step 4: Simplify right side
    265.50x = 335,241
  5. Step 5: Solve for x
    x = 335,241/265.50
  6. Step 6: Final answer
    x = 1,262.68

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.