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Finding the Third Proportional to 1,907.72 and 4,227.19

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Solution

The third proportional to 1,907.72 and 4,227.19 is: 9,366.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.72 : 4,227.19 = 4,227.19 : x
  2. Step 2: Convert to fraction form
    1,907.72/4,227.19 = 4,227.19/x
  3. Step 3: Cross multiply
    1,907.72x = 4,227.19 × 4,227.19
  4. Step 4: Simplify right side
    1,907.72x = 17,869,114.16
  5. Step 5: Solve for x
    x = 17,869,114.16/1,907.72
  6. Step 6: Final answer
    x = 9,366.74

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.