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Finding the Third Proportional to 920 and 956

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Solution

The third proportional to 920 and 956 is: 993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    920 : 956 = 956 : x
  2. Step 2: Convert to fraction form
    920/956 = 956/x
  3. Step 3: Cross multiply
    920x = 956 × 956
  4. Step 4: Simplify right side
    920x = 913,936
  5. Step 5: Solve for x
    x = 913,936/920
  6. Step 6: Final answer
    x = 993.41

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Why These Related Problems?

These problems maintain the same ratio (1.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.