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Finding the Third Proportional to 64.63 and 93.88

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Solution

The third proportional to 64.63 and 93.88 is: 136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.63 : 93.88 = 93.88 : x
  2. Step 2: Convert to fraction form
    64.63/93.88 = 93.88/x
  3. Step 3: Cross multiply
    64.63x = 93.88 × 93.88
  4. Step 4: Simplify right side
    64.63x = 8,812.52
  5. Step 5: Solve for x
    x = 8,812.52/64.63
  6. Step 6: Final answer
    x = 136.36

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.