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Finding the Third Proportional to 18,833 and 41,428

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Solution

The third proportional to 18,833 and 41,428 is: 91,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833 : 41,428 = 41,428 : x
  2. Step 2: Convert to fraction form
    18,833/41,428 = 41,428/x
  3. Step 3: Cross multiply
    18,833x = 41,428 × 41,428
  4. Step 4: Simplify right side
    18,833x = 1,716,279,184
  5. Step 5: Solve for x
    x = 1,716,279,184/18,833
  6. Step 6: Final answer
    x = 91,131.48

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.