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Finding the Third Proportional to 18,140 and 26,589

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Solution

The third proportional to 18,140 and 26,589 is: 38,973.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140 : 26,589 = 26,589 : x
  2. Step 2: Convert to fraction form
    18,140/26,589 = 26,589/x
  3. Step 3: Cross multiply
    18,140x = 26,589 × 26,589
  4. Step 4: Simplify right side
    18,140x = 706,974,921
  5. Step 5: Solve for x
    x = 706,974,921/18,140
  6. Step 6: Final answer
    x = 38,973.26

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.