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Finding the Third Proportional to 9,918 and 14,100

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Solution

The third proportional to 9,918 and 14,100 is: 20,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918 : 14,100 = 14,100 : x
  2. Step 2: Convert to fraction form
    9,918/14,100 = 14,100/x
  3. Step 3: Cross multiply
    9,918x = 14,100 × 14,100
  4. Step 4: Simplify right side
    9,918x = 198,810,000
  5. Step 5: Solve for x
    x = 198,810,000/9,918
  6. Step 6: Final answer
    x = 20,045.37

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.