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Finding the Third Proportional to 1,264 and 2,768

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Solution

The third proportional to 1,264 and 2,768 is: 6,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264 : 2,768 = 2,768 : x
  2. Step 2: Convert to fraction form
    1,264/2,768 = 2,768/x
  3. Step 3: Cross multiply
    1,264x = 2,768 × 2,768
  4. Step 4: Simplify right side
    1,264x = 7,661,824
  5. Step 5: Solve for x
    x = 7,661,824/1,264
  6. Step 6: Final answer
    x = 6,061.57

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.