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Finding the Third Proportional to 4,908 and 11,310

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Solution

The third proportional to 4,908 and 11,310 is: 26,062.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908 : 11,310 = 11,310 : x
  2. Step 2: Convert to fraction form
    4,908/11,310 = 11,310/x
  3. Step 3: Cross multiply
    4,908x = 11,310 × 11,310
  4. Step 4: Simplify right side
    4,908x = 127,916,100
  5. Step 5: Solve for x
    x = 127,916,100/4,908
  6. Step 6: Final answer
    x = 26,062.78

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.