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Finding the Third Proportional to 886 and 1,270

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Solution

The third proportional to 886 and 1,270 is: 1,820.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    886 : 1,270 = 1,270 : x
  2. Step 2: Convert to fraction form
    886/1,270 = 1,270/x
  3. Step 3: Cross multiply
    886x = 1,270 × 1,270
  4. Step 4: Simplify right side
    886x = 1,612,900
  5. Step 5: Solve for x
    x = 1,612,900/886
  6. Step 6: Final answer
    x = 1,820.43

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.