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Finding the Third Proportional to 70.75 and 96.13

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Solution

The third proportional to 70.75 and 96.13 is: 130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.75 : 96.13 = 96.13 : x
  2. Step 2: Convert to fraction form
    70.75/96.13 = 96.13/x
  3. Step 3: Cross multiply
    70.75x = 96.13 × 96.13
  4. Step 4: Simplify right side
    70.75x = 9,240.02
  5. Step 5: Solve for x
    x = 9,240.02/70.75
  6. Step 6: Final answer
    x = 130.60

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.