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Finding the Third Proportional to 18,471.94 and 40,039.88

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Solution

The third proportional to 18,471.94 and 40,039.88 is: 86,790.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471.94 : 40,039.88 = 40,039.88 : x
  2. Step 2: Convert to fraction form
    18,471.94/40,039.88 = 40,039.88/x
  3. Step 3: Cross multiply
    18,471.94x = 40,039.88 × 40,039.88
  4. Step 4: Simplify right side
    18,471.94x = 1,603,191,590.02
  5. Step 5: Solve for x
    x = 1,603,191,590.02/18,471.94
  6. Step 6: Final answer
    x = 86,790.66

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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.