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Finding the Third Proportional to 18,942 and 29,649

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Solution

The third proportional to 18,942 and 29,649 is: 46,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942 : 29,649 = 29,649 : x
  2. Step 2: Convert to fraction form
    18,942/29,649 = 29,649/x
  3. Step 3: Cross multiply
    18,942x = 29,649 × 29,649
  4. Step 4: Simplify right side
    18,942x = 879,063,201
  5. Step 5: Solve for x
    x = 879,063,201/18,942
  6. Step 6: Final answer
    x = 46,408.15

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.