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Finding the Third Proportional to 18,201.50 and 27,430.50

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Solution

The third proportional to 18,201.50 and 27,430.50 is: 41,339.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.50 : 27,430.50 = 27,430.50 : x
  2. Step 2: Convert to fraction form
    18,201.50/27,430.50 = 27,430.50/x
  3. Step 3: Cross multiply
    18,201.50x = 27,430.50 × 27,430.50
  4. Step 4: Simplify right side
    18,201.50x = 752,432,330.25
  5. Step 5: Solve for x
    x = 752,432,330.25/18,201.50
  6. Step 6: Final answer
    x = 41,339.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.