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Finding the Third Proportional to 1,199 and 1,862

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Solution

The third proportional to 1,199 and 1,862 is: 2,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199 : 1,862 = 1,862 : x
  2. Step 2: Convert to fraction form
    1,199/1,862 = 1,862/x
  3. Step 3: Cross multiply
    1,199x = 1,862 × 1,862
  4. Step 4: Simplify right side
    1,199x = 3,467,044
  5. Step 5: Solve for x
    x = 3,467,044/1,199
  6. Step 6: Final answer
    x = 2,891.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.