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Finding the Third Proportional to 66.56 and 93.56

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Solution

The third proportional to 66.56 and 93.56 is: 131.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.56 : 93.56 = 93.56 : x
  2. Step 2: Convert to fraction form
    66.56/93.56 = 93.56/x
  3. Step 3: Cross multiply
    66.56x = 93.56 × 93.56
  4. Step 4: Simplify right side
    66.56x = 8,753.94
  5. Step 5: Solve for x
    x = 8,753.94/66.56
  6. Step 6: Final answer
    x = 131.51

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.