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Finding the Third Proportional to 206.63 and 448.69

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Solution

The third proportional to 206.63 and 448.69 is: 974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.63 : 448.69 = 448.69 : x
  2. Step 2: Convert to fraction form
    206.63/448.69 = 448.69/x
  3. Step 3: Cross multiply
    206.63x = 448.69 × 448.69
  4. Step 4: Simplify right side
    206.63x = 201,320.47
  5. Step 5: Solve for x
    x = 201,320.47/206.63
  6. Step 6: Final answer
    x = 974.33

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.