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Finding the Third Proportional to 17.84 and 38.52

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Solution

The third proportional to 17.84 and 38.52 is: 83.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.84 : 38.52 = 38.52 : x
  2. Step 2: Convert to fraction form
    17.84/38.52 = 38.52/x
  3. Step 3: Cross multiply
    17.84x = 38.52 × 38.52
  4. Step 4: Simplify right side
    17.84x = 1,483.98
  5. Step 5: Solve for x
    x = 1,483.98/17.84
  6. Step 6: Final answer
    x = 83.19

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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.