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Finding the Third Proportional to 11,928 and 26,072

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Solution

The third proportional to 11,928 and 26,072 is: 56,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928 : 26,072 = 26,072 : x
  2. Step 2: Convert to fraction form
    11,928/26,072 = 26,072/x
  3. Step 3: Cross multiply
    11,928x = 26,072 × 26,072
  4. Step 4: Simplify right side
    11,928x = 679,749,184
  5. Step 5: Solve for x
    x = 679,749,184/11,928
  6. Step 6: Final answer
    x = 56,987.69

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.