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Finding the Third Proportional to 1,532 and 2,638

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Solution

The third proportional to 1,532 and 2,638 is: 4,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532 : 2,638 = 2,638 : x
  2. Step 2: Convert to fraction form
    1,532/2,638 = 2,638/x
  3. Step 3: Cross multiply
    1,532x = 2,638 × 2,638
  4. Step 4: Simplify right side
    1,532x = 6,959,044
  5. Step 5: Solve for x
    x = 6,959,044/1,532
  6. Step 6: Final answer
    x = 4,542.46

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.