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Finding the Third Proportional to 14,530 and 16,690

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Solution

The third proportional to 14,530 and 16,690 is: 19,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,530 : 16,690 = 16,690 : x
  2. Step 2: Convert to fraction form
    14,530/16,690 = 16,690/x
  3. Step 3: Cross multiply
    14,530x = 16,690 × 16,690
  4. Step 4: Simplify right side
    14,530x = 278,556,100
  5. Step 5: Solve for x
    x = 278,556,100/14,530
  6. Step 6: Final answer
    x = 19,171.10

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.