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Finding the Third Proportional to 534 and 918

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Solution

The third proportional to 534 and 918 is: 1,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    534 : 918 = 918 : x
  2. Step 2: Convert to fraction form
    534/918 = 918/x
  3. Step 3: Cross multiply
    534x = 918 × 918
  4. Step 4: Simplify right side
    534x = 842,724
  5. Step 5: Solve for x
    x = 842,724/534
  6. Step 6: Final answer
    x = 1,578.13

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.