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Finding the Third Proportional to 2,220.75 and 3,346.31

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Solution

The third proportional to 2,220.75 and 3,346.31 is: 5,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.75 : 3,346.31 = 3,346.31 : x
  2. Step 2: Convert to fraction form
    2,220.75/3,346.31 = 3,346.31/x
  3. Step 3: Cross multiply
    2,220.75x = 3,346.31 × 3,346.31
  4. Step 4: Simplify right side
    2,220.75x = 11,197,807.35
  5. Step 5: Solve for x
    x = 11,197,807.35/2,220.75
  6. Step 6: Final answer
    x = 5,042.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.