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Finding the Third Proportional to 7,405 and 11,184

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Solution

The third proportional to 7,405 and 11,184 is: 16,891.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405 : 11,184 = 11,184 : x
  2. Step 2: Convert to fraction form
    7,405/11,184 = 11,184/x
  3. Step 3: Cross multiply
    7,405x = 11,184 × 11,184
  4. Step 4: Simplify right side
    7,405x = 125,081,856
  5. Step 5: Solve for x
    x = 125,081,856/7,405
  6. Step 6: Final answer
    x = 16,891.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.