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Finding the Third Proportional to 9,430 and 13,177

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Solution

The third proportional to 9,430 and 13,177 is: 18,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430 : 13,177 = 13,177 : x
  2. Step 2: Convert to fraction form
    9,430/13,177 = 13,177/x
  3. Step 3: Cross multiply
    9,430x = 13,177 × 13,177
  4. Step 4: Simplify right side
    9,430x = 173,633,329
  5. Step 5: Solve for x
    x = 173,633,329/9,430
  6. Step 6: Final answer
    x = 18,412.87

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.