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Finding the Third Proportional to 4,788 and 11,138

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Solution

The third proportional to 4,788 and 11,138 is: 25,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788 : 11,138 = 11,138 : x
  2. Step 2: Convert to fraction form
    4,788/11,138 = 11,138/x
  3. Step 3: Cross multiply
    4,788x = 11,138 × 11,138
  4. Step 4: Simplify right side
    4,788x = 124,055,044
  5. Step 5: Solve for x
    x = 124,055,044/4,788
  6. Step 6: Final answer
    x = 25,909.57

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.