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Finding the Third Proportional to 18,705.94 and 40,928.63

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Solution

The third proportional to 18,705.94 and 40,928.63 is: 89,551.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.94 : 40,928.63 = 40,928.63 : x
  2. Step 2: Convert to fraction form
    18,705.94/40,928.63 = 40,928.63/x
  3. Step 3: Cross multiply
    18,705.94x = 40,928.63 × 40,928.63
  4. Step 4: Simplify right side
    18,705.94x = 1,675,152,344.39
  5. Step 5: Solve for x
    x = 1,675,152,344.39/18,705.94
  6. Step 6: Final answer
    x = 89,551.91

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.