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Finding the Third Proportional to 914.63 and 1,919.25

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Solution

The third proportional to 914.63 and 1,919.25 is: 4,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.63 : 1,919.25 = 1,919.25 : x
  2. Step 2: Convert to fraction form
    914.63/1,919.25 = 1,919.25/x
  3. Step 3: Cross multiply
    914.63x = 1,919.25 × 1,919.25
  4. Step 4: Simplify right side
    914.63x = 3,683,520.56
  5. Step 5: Solve for x
    x = 3,683,520.56/914.63
  6. Step 6: Final answer
    x = 4,027.36

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.