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Finding the Third Proportional to 197.50 and 335.50

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Solution

The third proportional to 197.50 and 335.50 is: 569.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.50 : 335.50 = 335.50 : x
  2. Step 2: Convert to fraction form
    197.50/335.50 = 335.50/x
  3. Step 3: Cross multiply
    197.50x = 335.50 × 335.50
  4. Step 4: Simplify right side
    197.50x = 112,560.25
  5. Step 5: Solve for x
    x = 112,560.25/197.50
  6. Step 6: Final answer
    x = 569.93

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.