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Finding the Third Proportional to 922.64 and 1,993.36

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Solution

The third proportional to 922.64 and 1,993.36 is: 4,306.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.64 : 1,993.36 = 1,993.36 : x
  2. Step 2: Convert to fraction form
    922.64/1,993.36 = 1,993.36/x
  3. Step 3: Cross multiply
    922.64x = 1,993.36 × 1,993.36
  4. Step 4: Simplify right side
    922.64x = 3,973,481.60
  5. Step 5: Solve for x
    x = 3,973,481.60/922.64
  6. Step 6: Final answer
    x = 4,306.64

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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.