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Finding the Third Proportional to 7,228 and 14,939

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Solution

The third proportional to 7,228 and 14,939 is: 30,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228 : 14,939 = 14,939 : x
  2. Step 2: Convert to fraction form
    7,228/14,939 = 14,939/x
  3. Step 3: Cross multiply
    7,228x = 14,939 × 14,939
  4. Step 4: Simplify right side
    7,228x = 223,173,721
  5. Step 5: Solve for x
    x = 223,173,721/7,228
  6. Step 6: Final answer
    x = 30,876.28

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.