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Finding the Third Proportional to 1,492 and 3,102

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Solution

The third proportional to 1,492 and 3,102 is: 6,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492 : 3,102 = 3,102 : x
  2. Step 2: Convert to fraction form
    1,492/3,102 = 3,102/x
  3. Step 3: Cross multiply
    1,492x = 3,102 × 3,102
  4. Step 4: Simplify right side
    1,492x = 9,622,404
  5. Step 5: Solve for x
    x = 9,622,404/1,492
  6. Step 6: Final answer
    x = 6,449.33

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.