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Finding the Third Proportional to 1,908 and 5,154

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Solution

The third proportional to 1,908 and 5,154 is: 13,922.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908 : 5,154 = 5,154 : x
  2. Step 2: Convert to fraction form
    1,908/5,154 = 5,154/x
  3. Step 3: Cross multiply
    1,908x = 5,154 × 5,154
  4. Step 4: Simplify right side
    1,908x = 26,563,716
  5. Step 5: Solve for x
    x = 26,563,716/1,908
  6. Step 6: Final answer
    x = 13,922.28

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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.