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Finding the Third Proportional to 1,016 and 1,228

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Solution

The third proportional to 1,016 and 1,228 is: 1,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016 : 1,228 = 1,228 : x
  2. Step 2: Convert to fraction form
    1,016/1,228 = 1,228/x
  3. Step 3: Cross multiply
    1,016x = 1,228 × 1,228
  4. Step 4: Simplify right side
    1,016x = 1,507,984
  5. Step 5: Solve for x
    x = 1,507,984/1,016
  6. Step 6: Final answer
    x = 1,484.24

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.