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Finding the Third Proportional to 1,908 and 4,164

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Solution

The third proportional to 1,908 and 4,164 is: 9,087.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908 : 4,164 = 4,164 : x
  2. Step 2: Convert to fraction form
    1,908/4,164 = 4,164/x
  3. Step 3: Cross multiply
    1,908x = 4,164 × 4,164
  4. Step 4: Simplify right side
    1,908x = 17,338,896
  5. Step 5: Solve for x
    x = 17,338,896/1,908
  6. Step 6: Final answer
    x = 9,087.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.