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Finding the Third Proportional to 1,936 and 2,798

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Solution

The third proportional to 1,936 and 2,798 is: 4,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936 : 2,798 = 2,798 : x
  2. Step 2: Convert to fraction form
    1,936/2,798 = 2,798/x
  3. Step 3: Cross multiply
    1,936x = 2,798 × 2,798
  4. Step 4: Simplify right side
    1,936x = 7,828,804
  5. Step 5: Solve for x
    x = 7,828,804/1,936
  6. Step 6: Final answer
    x = 4,043.80

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.