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Finding the Third Proportional to 835.88 and 1,809

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Solution

The third proportional to 835.88 and 1,809 is: 3,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.88 : 1,809 = 1,809 : x
  2. Step 2: Convert to fraction form
    835.88/1,809 = 1,809/x
  3. Step 3: Cross multiply
    835.88x = 1,809 × 1,809
  4. Step 4: Simplify right side
    835.88x = 3,272,481
  5. Step 5: Solve for x
    x = 3,272,481/835.88
  6. Step 6: Final answer
    x = 3,915.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.