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Finding the Third Proportional to 213 and 467.81

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Solution

The third proportional to 213 and 467.81 is: 1,027.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213 : 467.81 = 467.81 : x
  2. Step 2: Convert to fraction form
    213/467.81 = 467.81/x
  3. Step 3: Cross multiply
    213x = 467.81 × 467.81
  4. Step 4: Simplify right side
    213x = 218,848.54
  5. Step 5: Solve for x
    x = 218,848.54/213
  6. Step 6: Final answer
    x = 1,027.46

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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.