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Finding the Third Proportional to 656 and 1,168

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Solution

The third proportional to 656 and 1,168 is: 2,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    656 : 1,168 = 1,168 : x
  2. Step 2: Convert to fraction form
    656/1,168 = 1,168/x
  3. Step 3: Cross multiply
    656x = 1,168 × 1,168
  4. Step 4: Simplify right side
    656x = 1,364,224
  5. Step 5: Solve for x
    x = 1,364,224/656
  6. Step 6: Final answer
    x = 2,079.61

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.