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Finding the Third Proportional to 18,396 and 40,014

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Solution

The third proportional to 18,396 and 40,014 is: 87,036.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396 : 40,014 = 40,014 : x
  2. Step 2: Convert to fraction form
    18,396/40,014 = 40,014/x
  3. Step 3: Cross multiply
    18,396x = 40,014 × 40,014
  4. Step 4: Simplify right side
    18,396x = 1,601,120,196
  5. Step 5: Solve for x
    x = 1,601,120,196/18,396
  6. Step 6: Final answer
    x = 87,036.32

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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.