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Finding the Third Proportional to 189 and 468.50

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Solution

The third proportional to 189 and 468.50 is: 1,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189 : 468.50 = 468.50 : x
  2. Step 2: Convert to fraction form
    189/468.50 = 468.50/x
  3. Step 3: Cross multiply
    189x = 468.50 × 468.50
  4. Step 4: Simplify right side
    189x = 219,492.25
  5. Step 5: Solve for x
    x = 219,492.25/189
  6. Step 6: Final answer
    x = 1,161.33

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.