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Finding the Third Proportional to 3,576 and 5,311.50

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Solution

The third proportional to 3,576 and 5,311.50 is: 7,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576 : 5,311.50 = 5,311.50 : x
  2. Step 2: Convert to fraction form
    3,576/5,311.50 = 5,311.50/x
  3. Step 3: Cross multiply
    3,576x = 5,311.50 × 5,311.50
  4. Step 4: Simplify right side
    3,576x = 28,212,032.25
  5. Step 5: Solve for x
    x = 28,212,032.25/3,576
  6. Step 6: Final answer
    x = 7,889.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.