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Finding the Third Proportional to 1,838 and 4,531

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Solution

The third proportional to 1,838 and 4,531 is: 11,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838 : 4,531 = 4,531 : x
  2. Step 2: Convert to fraction form
    1,838/4,531 = 4,531/x
  3. Step 3: Cross multiply
    1,838x = 4,531 × 4,531
  4. Step 4: Simplify right side
    1,838x = 20,529,961
  5. Step 5: Solve for x
    x = 20,529,961/1,838
  6. Step 6: Final answer
    x = 11,169.73

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.