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Finding the Third Proportional to 21,852 and 33,415

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Solution

The third proportional to 21,852 and 33,415 is: 51,096.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852 : 33,415 = 33,415 : x
  2. Step 2: Convert to fraction form
    21,852/33,415 = 33,415/x
  3. Step 3: Cross multiply
    21,852x = 33,415 × 33,415
  4. Step 4: Simplify right side
    21,852x = 1,116,562,225
  5. Step 5: Solve for x
    x = 1,116,562,225/21,852
  6. Step 6: Final answer
    x = 51,096.57

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.