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Finding the Third Proportional to 4,008 and 7,104

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Solution

The third proportional to 4,008 and 7,104 is: 12,591.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,008 : 7,104 = 7,104 : x
  2. Step 2: Convert to fraction form
    4,008/7,104 = 7,104/x
  3. Step 3: Cross multiply
    4,008x = 7,104 × 7,104
  4. Step 4: Simplify right side
    4,008x = 50,466,816
  5. Step 5: Solve for x
    x = 50,466,816/4,008
  6. Step 6: Final answer
    x = 12,591.52

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.