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Finding the Third Proportional to 3,678 and 6,492

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Solution

The third proportional to 3,678 and 6,492 is: 11,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678 : 6,492 = 6,492 : x
  2. Step 2: Convert to fraction form
    3,678/6,492 = 6,492/x
  3. Step 3: Cross multiply
    3,678x = 6,492 × 6,492
  4. Step 4: Simplify right side
    3,678x = 42,146,064
  5. Step 5: Solve for x
    x = 42,146,064/3,678
  6. Step 6: Final answer
    x = 11,458.96

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.