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Finding the Third Proportional to 2,278.50 and 4,647

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Solution

The third proportional to 2,278.50 and 4,647 is: 9,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.50 : 4,647 = 4,647 : x
  2. Step 2: Convert to fraction form
    2,278.50/4,647 = 4,647/x
  3. Step 3: Cross multiply
    2,278.50x = 4,647 × 4,647
  4. Step 4: Simplify right side
    2,278.50x = 21,594,609
  5. Step 5: Solve for x
    x = 21,594,609/2,278.50
  6. Step 6: Final answer
    x = 9,477.55

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.