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Finding the Third Proportional to 4,369.50 and 9,511.50

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Solution

The third proportional to 4,369.50 and 9,511.50 is: 20,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,369.50 : 9,511.50 = 9,511.50 : x
  2. Step 2: Convert to fraction form
    4,369.50/9,511.50 = 9,511.50/x
  3. Step 3: Cross multiply
    4,369.50x = 9,511.50 × 9,511.50
  4. Step 4: Simplify right side
    4,369.50x = 90,468,632.25
  5. Step 5: Solve for x
    x = 90,468,632.25/4,369.50
  6. Step 6: Final answer
    x = 20,704.57

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.