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Finding the Third Proportional to 1,864 and 4,008

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Solution

The third proportional to 1,864 and 4,008 is: 8,618.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864 : 4,008 = 4,008 : x
  2. Step 2: Convert to fraction form
    1,864/4,008 = 4,008/x
  3. Step 3: Cross multiply
    1,864x = 4,008 × 4,008
  4. Step 4: Simplify right side
    1,864x = 16,064,064
  5. Step 5: Solve for x
    x = 16,064,064/1,864
  6. Step 6: Final answer
    x = 8,618.06

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.