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Finding the Third Proportional to 1,624 and 3,856

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Solution

The third proportional to 1,624 and 3,856 is: 9,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624 : 3,856 = 3,856 : x
  2. Step 2: Convert to fraction form
    1,624/3,856 = 3,856/x
  3. Step 3: Cross multiply
    1,624x = 3,856 × 3,856
  4. Step 4: Simplify right side
    1,624x = 14,868,736
  5. Step 5: Solve for x
    x = 14,868,736/1,624
  6. Step 6: Final answer
    x = 9,155.63

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.