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Finding the Third Proportional to 18,042.75 and 39,360.94

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Solution

The third proportional to 18,042.75 and 39,360.94 is: 85,867.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042.75 : 39,360.94 = 39,360.94 : x
  2. Step 2: Convert to fraction form
    18,042.75/39,360.94 = 39,360.94/x
  3. Step 3: Cross multiply
    18,042.75x = 39,360.94 × 39,360.94
  4. Step 4: Simplify right side
    18,042.75x = 1,549,283,400.88
  5. Step 5: Solve for x
    x = 1,549,283,400.88/18,042.75
  6. Step 6: Final answer
    x = 85,867.37

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.