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Finding the Third Proportional to 161.63 and 347

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Solution

The third proportional to 161.63 and 347 is: 744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.63 : 347 = 347 : x
  2. Step 2: Convert to fraction form
    161.63/347 = 347/x
  3. Step 3: Cross multiply
    161.63x = 347 × 347
  4. Step 4: Simplify right side
    161.63x = 120,409
  5. Step 5: Solve for x
    x = 120,409/161.63
  6. Step 6: Final answer
    x = 744.99

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.