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Finding the Third Proportional to 855.56 and 1,751.63

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Solution

The third proportional to 855.56 and 1,751.63 is: 3,586.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.56 : 1,751.63 = 1,751.63 : x
  2. Step 2: Convert to fraction form
    855.56/1,751.63 = 1,751.63/x
  3. Step 3: Cross multiply
    855.56x = 1,751.63 × 1,751.63
  4. Step 4: Simplify right side
    855.56x = 3,068,190.14
  5. Step 5: Solve for x
    x = 3,068,190.14/855.56
  6. Step 6: Final answer
    x = 3,586.17

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.