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Finding the Third Proportional to 9,372 and 13,210

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Solution

The third proportional to 9,372 and 13,210 is: 18,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372 : 13,210 = 13,210 : x
  2. Step 2: Convert to fraction form
    9,372/13,210 = 13,210/x
  3. Step 3: Cross multiply
    9,372x = 13,210 × 13,210
  4. Step 4: Simplify right side
    9,372x = 174,504,100
  5. Step 5: Solve for x
    x = 174,504,100/9,372
  6. Step 6: Final answer
    x = 18,619.73

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.