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Finding the Third Proportional to 1,922.06 and 4,222.97

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Solution

The third proportional to 1,922.06 and 4,222.97 is: 9,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.06 : 4,222.97 = 4,222.97 : x
  2. Step 2: Convert to fraction form
    1,922.06/4,222.97 = 4,222.97/x
  3. Step 3: Cross multiply
    1,922.06x = 4,222.97 × 4,222.97
  4. Step 4: Simplify right side
    1,922.06x = 17,833,465.06
  5. Step 5: Solve for x
    x = 17,833,465.06/1,922.06
  6. Step 6: Final answer
    x = 9,278.30

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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.