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Finding the Third Proportional to 69.94 and 94.72

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Solution

The third proportional to 69.94 and 94.72 is: 128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.94 : 94.72 = 94.72 : x
  2. Step 2: Convert to fraction form
    69.94/94.72 = 94.72/x
  3. Step 3: Cross multiply
    69.94x = 94.72 × 94.72
  4. Step 4: Simplify right side
    69.94x = 8,971.64
  5. Step 5: Solve for x
    x = 8,971.64/69.94
  6. Step 6: Final answer
    x = 128.28

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These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.