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Finding the Third Proportional to 4,422.09 and 6,787.55

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Solution

The third proportional to 4,422.09 and 6,787.55 is: 10,418.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,422.09 : 6,787.55 = 6,787.55 : x
  2. Step 2: Convert to fraction form
    4,422.09/6,787.55 = 6,787.55/x
  3. Step 3: Cross multiply
    4,422.09x = 6,787.55 × 6,787.55
  4. Step 4: Simplify right side
    4,422.09x = 46,070,792.58
  5. Step 5: Solve for x
    x = 46,070,792.58/4,422.09
  6. Step 6: Final answer
    x = 10,418.32

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.