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Finding the Third Proportional to 293.50 and 302.50

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Solution

The third proportional to 293.50 and 302.50 is: 311.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.50 : 302.50 = 302.50 : x
  2. Step 2: Convert to fraction form
    293.50/302.50 = 302.50/x
  3. Step 3: Cross multiply
    293.50x = 302.50 × 302.50
  4. Step 4: Simplify right side
    293.50x = 91,506.25
  5. Step 5: Solve for x
    x = 91,506.25/293.50
  6. Step 6: Final answer
    x = 311.78

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Why These Related Problems?

These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.