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Finding the Third Proportional to 189 and 332.25

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Solution

The third proportional to 189 and 332.25 is: 584.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189 : 332.25 = 332.25 : x
  2. Step 2: Convert to fraction form
    189/332.25 = 332.25/x
  3. Step 3: Cross multiply
    189x = 332.25 × 332.25
  4. Step 4: Simplify right side
    189x = 110,390.06
  5. Step 5: Solve for x
    x = 110,390.06/189
  6. Step 6: Final answer
    x = 584.07

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.