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Finding the Third Proportional to 1,492 and 3,456

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Solution

The third proportional to 1,492 and 3,456 is: 8,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492 : 3,456 = 3,456 : x
  2. Step 2: Convert to fraction form
    1,492/3,456 = 3,456/x
  3. Step 3: Cross multiply
    1,492x = 3,456 × 3,456
  4. Step 4: Simplify right side
    1,492x = 11,943,936
  5. Step 5: Solve for x
    x = 11,943,936/1,492
  6. Step 6: Final answer
    x = 8,005.32

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.