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Finding the Third Proportional to 93.94 and 128.25

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Solution

The third proportional to 93.94 and 128.25 is: 175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.94 : 128.25 = 128.25 : x
  2. Step 2: Convert to fraction form
    93.94/128.25 = 128.25/x
  3. Step 3: Cross multiply
    93.94x = 128.25 × 128.25
  4. Step 4: Simplify right side
    93.94x = 16,448.06
  5. Step 5: Solve for x
    x = 16,448.06/93.94
  6. Step 6: Final answer
    x = 175.10

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.