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Finding the Third Proportional to 833 and 1,822

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Solution

The third proportional to 833 and 1,822 is: 3,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    833 : 1,822 = 1,822 : x
  2. Step 2: Convert to fraction form
    833/1,822 = 1,822/x
  3. Step 3: Cross multiply
    833x = 1,822 × 1,822
  4. Step 4: Simplify right side
    833x = 3,319,684
  5. Step 5: Solve for x
    x = 3,319,684/833
  6. Step 6: Final answer
    x = 3,985.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.