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Finding the Third Proportional to 12,138 and 26,176

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Solution

The third proportional to 12,138 and 26,176 is: 56,449.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138 : 26,176 = 26,176 : x
  2. Step 2: Convert to fraction form
    12,138/26,176 = 26,176/x
  3. Step 3: Cross multiply
    12,138x = 26,176 × 26,176
  4. Step 4: Simplify right side
    12,138x = 685,182,976
  5. Step 5: Solve for x
    x = 685,182,976/12,138
  6. Step 6: Final answer
    x = 56,449.41

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.