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Finding the Third Proportional to 131.63 and 193.64

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Solution

The third proportional to 131.63 and 193.64 is: 284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.63 : 193.64 = 193.64 : x
  2. Step 2: Convert to fraction form
    131.63/193.64 = 193.64/x
  3. Step 3: Cross multiply
    131.63x = 193.64 × 193.64
  4. Step 4: Simplify right side
    131.63x = 37,496.69
  5. Step 5: Solve for x
    x = 37,496.69/131.63
  6. Step 6: Final answer
    x = 284.88

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.