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Finding the Third Proportional to 3,104 and 4,155

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Solution

The third proportional to 3,104 and 4,155 is: 5,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104 : 4,155 = 4,155 : x
  2. Step 2: Convert to fraction form
    3,104/4,155 = 4,155/x
  3. Step 3: Cross multiply
    3,104x = 4,155 × 4,155
  4. Step 4: Simplify right side
    3,104x = 17,264,025
  5. Step 5: Solve for x
    x = 17,264,025/3,104
  6. Step 6: Final answer
    x = 5,561.86

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.