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Finding the Third Proportional to 18,090 and 43,566

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Solution

The third proportional to 18,090 and 43,566 is: 104,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090 : 43,566 = 43,566 : x
  2. Step 2: Convert to fraction form
    18,090/43,566 = 43,566/x
  3. Step 3: Cross multiply
    18,090x = 43,566 × 43,566
  4. Step 4: Simplify right side
    18,090x = 1,897,996,356
  5. Step 5: Solve for x
    x = 1,897,996,356/18,090
  6. Step 6: Final answer
    x = 104,919.64

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.