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Finding the Third Proportional to 18,416.25 and 40,912.88

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Solution

The third proportional to 18,416.25 and 40,912.88 is: 90,890.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,416.25 : 40,912.88 = 40,912.88 : x
  2. Step 2: Convert to fraction form
    18,416.25/40,912.88 = 40,912.88/x
  3. Step 3: Cross multiply
    18,416.25x = 40,912.88 × 40,912.88
  4. Step 4: Simplify right side
    18,416.25x = 1,673,863,340.77
  5. Step 5: Solve for x
    x = 1,673,863,340.77/18,416.25
  6. Step 6: Final answer
    x = 90,890.56

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1.5x scale

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.