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Finding the Third Proportional to 1,936 and 4,485

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Solution

The third proportional to 1,936 and 4,485 is: 10,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936 : 4,485 = 4,485 : x
  2. Step 2: Convert to fraction form
    1,936/4,485 = 4,485/x
  3. Step 3: Cross multiply
    1,936x = 4,485 × 4,485
  4. Step 4: Simplify right side
    1,936x = 20,115,225
  5. Step 5: Solve for x
    x = 20,115,225/1,936
  6. Step 6: Final answer
    x = 10,390.10

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.