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Finding the Third Proportional to 944 and 1,638

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Solution

The third proportional to 944 and 1,638 is: 2,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    944 : 1,638 = 1,638 : x
  2. Step 2: Convert to fraction form
    944/1,638 = 1,638/x
  3. Step 3: Cross multiply
    944x = 1,638 × 1,638
  4. Step 4: Simplify right side
    944x = 2,683,044
  5. Step 5: Solve for x
    x = 2,683,044/944
  6. Step 6: Final answer
    x = 2,842.21

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.