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Finding the Third Proportional to 965 and 1,317

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Solution

The third proportional to 965 and 1,317 is: 1,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    965 : 1,317 = 1,317 : x
  2. Step 2: Convert to fraction form
    965/1,317 = 1,317/x
  3. Step 3: Cross multiply
    965x = 1,317 × 1,317
  4. Step 4: Simplify right side
    965x = 1,734,489
  5. Step 5: Solve for x
    x = 1,734,489/965
  6. Step 6: Final answer
    x = 1,797.40

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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.