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Finding the Third Proportional to 534 and 862

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Solution

The third proportional to 534 and 862 is: 1,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    534 : 862 = 862 : x
  2. Step 2: Convert to fraction form
    534/862 = 862/x
  3. Step 3: Cross multiply
    534x = 862 × 862
  4. Step 4: Simplify right side
    534x = 743,044
  5. Step 5: Solve for x
    x = 743,044/534
  6. Step 6: Final answer
    x = 1,391.47

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.