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Finding the Third Proportional to 9,219 and 12,016.50

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Solution

The third proportional to 9,219 and 12,016.50 is: 15,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219 : 12,016.50 = 12,016.50 : x
  2. Step 2: Convert to fraction form
    9,219/12,016.50 = 12,016.50/x
  3. Step 3: Cross multiply
    9,219x = 12,016.50 × 12,016.50
  4. Step 4: Simplify right side
    9,219x = 144,396,272.25
  5. Step 5: Solve for x
    x = 144,396,272.25/9,219
  6. Step 6: Final answer
    x = 15,662.90

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.