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Finding the Third Proportional to 4,231.50 and 4,609.50

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Solution

The third proportional to 4,231.50 and 4,609.50 is: 5,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231.50 : 4,609.50 = 4,609.50 : x
  2. Step 2: Convert to fraction form
    4,231.50/4,609.50 = 4,609.50/x
  3. Step 3: Cross multiply
    4,231.50x = 4,609.50 × 4,609.50
  4. Step 4: Simplify right side
    4,231.50x = 21,247,490.25
  5. Step 5: Solve for x
    x = 21,247,490.25/4,231.50
  6. Step 6: Final answer
    x = 5,021.27

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.