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Finding the Third Proportional to 9,576 and 20,311.50

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Solution

The third proportional to 9,576 and 20,311.50 is: 43,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,576 : 20,311.50 = 20,311.50 : x
  2. Step 2: Convert to fraction form
    9,576/20,311.50 = 20,311.50/x
  3. Step 3: Cross multiply
    9,576x = 20,311.50 × 20,311.50
  4. Step 4: Simplify right side
    9,576x = 412,557,032.25
  5. Step 5: Solve for x
    x = 412,557,032.25/9,576
  6. Step 6: Final answer
    x = 43,082.40

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.