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Finding the Third Proportional to 64.13 and 96.61

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Solution

The third proportional to 64.13 and 96.61 is: 145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.13 : 96.61 = 96.61 : x
  2. Step 2: Convert to fraction form
    64.13/96.61 = 96.61/x
  3. Step 3: Cross multiply
    64.13x = 96.61 × 96.61
  4. Step 4: Simplify right side
    64.13x = 9,333.37
  5. Step 5: Solve for x
    x = 9,333.37/64.13
  6. Step 6: Final answer
    x = 145.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.