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Finding the Third Proportional to 165.88 and 393.75

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Solution

The third proportional to 165.88 and 393.75 is: 934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.88 : 393.75 = 393.75 : x
  2. Step 2: Convert to fraction form
    165.88/393.75 = 393.75/x
  3. Step 3: Cross multiply
    165.88x = 393.75 × 393.75
  4. Step 4: Simplify right side
    165.88x = 155,039.06
  5. Step 5: Solve for x
    x = 155,039.06/165.88
  6. Step 6: Final answer
    x = 934.67

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.