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Finding the Third Proportional to 18,422.44 and 28,787.91

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Solution

The third proportional to 18,422.44 and 28,787.91 is: 44,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.44 : 28,787.91 = 28,787.91 : x
  2. Step 2: Convert to fraction form
    18,422.44/28,787.91 = 28,787.91/x
  3. Step 3: Cross multiply
    18,422.44x = 28,787.91 × 28,787.91
  4. Step 4: Simplify right side
    18,422.44x = 828,743,546.26
  5. Step 5: Solve for x
    x = 828,743,546.26/18,422.44
  6. Step 6: Final answer
    x = 44,985.55

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.