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Finding the Third Proportional to 18,478.44 and 28,954.26

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Solution

The third proportional to 18,478.44 and 28,954.26 is: 45,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.44 : 28,954.26 = 28,954.26 : x
  2. Step 2: Convert to fraction form
    18,478.44/28,954.26 = 28,954.26/x
  3. Step 3: Cross multiply
    18,478.44x = 28,954.26 × 28,954.26
  4. Step 4: Simplify right side
    18,478.44x = 838,348,988.92
  5. Step 5: Solve for x
    x = 838,348,988.92/18,478.44
  6. Step 6: Final answer
    x = 45,369.03

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.