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Finding the Third Proportional to 189 and 467.50

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Solution

The third proportional to 189 and 467.50 is: 1,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189 : 467.50 = 467.50 : x
  2. Step 2: Convert to fraction form
    189/467.50 = 467.50/x
  3. Step 3: Cross multiply
    189x = 467.50 × 467.50
  4. Step 4: Simplify right side
    189x = 218,556.25
  5. Step 5: Solve for x
    x = 218,556.25/189
  6. Step 6: Final answer
    x = 1,156.38

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.