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Finding the Third Proportional to 18,928.69 and 27,960.19

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Solution

The third proportional to 18,928.69 and 27,960.19 is: 41,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.69 : 27,960.19 = 27,960.19 : x
  2. Step 2: Convert to fraction form
    18,928.69/27,960.19 = 27,960.19/x
  3. Step 3: Cross multiply
    18,928.69x = 27,960.19 × 27,960.19
  4. Step 4: Simplify right side
    18,928.69x = 781,772,085.04
  5. Step 5: Solve for x
    x = 781,772,085.04/18,928.69
  6. Step 6: Final answer
    x = 41,300.91

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.