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Finding the Third Proportional to 162.75 and 352.31

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Solution

The third proportional to 162.75 and 352.31 is: 762.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.75 : 352.31 = 352.31 : x
  2. Step 2: Convert to fraction form
    162.75/352.31 = 352.31/x
  3. Step 3: Cross multiply
    162.75x = 352.31 × 352.31
  4. Step 4: Simplify right side
    162.75x = 124,124.10
  5. Step 5: Solve for x
    x = 124,124.10/162.75
  6. Step 6: Final answer
    x = 762.67

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.