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Finding the Third Proportional to 1,947.80 and 4,630.29

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Solution

The third proportional to 1,947.80 and 4,630.29 is: 11,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.80 : 4,630.29 = 4,630.29 : x
  2. Step 2: Convert to fraction form
    1,947.80/4,630.29 = 4,630.29/x
  3. Step 3: Cross multiply
    1,947.80x = 4,630.29 × 4,630.29
  4. Step 4: Simplify right side
    1,947.80x = 21,439,576.80
  5. Step 5: Solve for x
    x = 21,439,576.80/1,947.80
  6. Step 6: Final answer
    x = 11,007.09

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.