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Finding the Third Proportional to 41,917.50 and 90,369

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Solution

The third proportional to 41,917.50 and 90,369 is: 194,824.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,917.50 : 90,369 = 90,369 : x
  2. Step 2: Convert to fraction form
    41,917.50/90,369 = 90,369/x
  3. Step 3: Cross multiply
    41,917.50x = 90,369 × 90,369
  4. Step 4: Simplify right side
    41,917.50x = 8,166,556,161
  5. Step 5: Solve for x
    x = 8,166,556,161/41,917.50
  6. Step 6: Final answer
    x = 194,824.50

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.