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Finding the Third Proportional to 70.25 and 93.50

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Solution

The third proportional to 70.25 and 93.50 is: 124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.25 : 93.50 = 93.50 : x
  2. Step 2: Convert to fraction form
    70.25/93.50 = 93.50/x
  3. Step 3: Cross multiply
    70.25x = 93.50 × 93.50
  4. Step 4: Simplify right side
    70.25x = 8,742.25
  5. Step 5: Solve for x
    x = 8,742.25/70.25
  6. Step 6: Final answer
    x = 124.44

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.