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Finding the Third Proportional to 1,900 and 5,134

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Solution

The third proportional to 1,900 and 5,134 is: 13,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900 : 5,134 = 5,134 : x
  2. Step 2: Convert to fraction form
    1,900/5,134 = 5,134/x
  3. Step 3: Cross multiply
    1,900x = 5,134 × 5,134
  4. Step 4: Simplify right side
    1,900x = 26,357,956
  5. Step 5: Solve for x
    x = 26,357,956/1,900
  6. Step 6: Final answer
    x = 13,872.61

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.