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Finding the Third Proportional to 1,921.22 and 4,610.36

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Solution

The third proportional to 1,921.22 and 4,610.36 is: 11,063.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.22 : 4,610.36 = 4,610.36 : x
  2. Step 2: Convert to fraction form
    1,921.22/4,610.36 = 4,610.36/x
  3. Step 3: Cross multiply
    1,921.22x = 4,610.36 × 4,610.36
  4. Step 4: Simplify right side
    1,921.22x = 21,255,377.55
  5. Step 5: Solve for x
    x = 21,255,377.55/1,921.22
  6. Step 6: Final answer
    x = 11,063.49

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.