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Finding the Third Proportional to 18,821.25 and 40,922.88

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Solution

The third proportional to 18,821.25 and 40,922.88 is: 88,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.25 : 40,922.88 = 40,922.88 : x
  2. Step 2: Convert to fraction form
    18,821.25/40,922.88 = 40,922.88/x
  3. Step 3: Cross multiply
    18,821.25x = 40,922.88 × 40,922.88
  4. Step 4: Simplify right side
    18,821.25x = 1,674,681,698.27
  5. Step 5: Solve for x
    x = 1,674,681,698.27/18,821.25
  6. Step 6: Final answer
    x = 88,978.24

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.