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Finding the Third Proportional to 18,826.88 and 40,568.63

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Solution

The third proportional to 18,826.88 and 40,568.63 is: 87,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.88 : 40,568.63 = 40,568.63 : x
  2. Step 2: Convert to fraction form
    18,826.88/40,568.63 = 40,568.63/x
  3. Step 3: Cross multiply
    18,826.88x = 40,568.63 × 40,568.63
  4. Step 4: Simplify right side
    18,826.88x = 1,645,813,334.39
  5. Step 5: Solve for x
    x = 1,645,813,334.39/18,826.88
  6. Step 6: Final answer
    x = 87,418.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.