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Finding the Third Proportional to 830.25 and 1,827

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Solution

The third proportional to 830.25 and 1,827 is: 4,020.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    830.25 : 1,827 = 1,827 : x
  2. Step 2: Convert to fraction form
    830.25/1,827 = 1,827/x
  3. Step 3: Cross multiply
    830.25x = 1,827 × 1,827
  4. Step 4: Simplify right side
    830.25x = 3,337,929
  5. Step 5: Solve for x
    x = 3,337,929/830.25
  6. Step 6: Final answer
    x = 4,020.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.