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Finding the Third Proportional to 18,665.44 and 28,901.81

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Solution

The third proportional to 18,665.44 and 28,901.81 is: 44,751.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.44 : 28,901.81 = 28,901.81 : x
  2. Step 2: Convert to fraction form
    18,665.44/28,901.81 = 28,901.81/x
  3. Step 3: Cross multiply
    18,665.44x = 28,901.81 × 28,901.81
  4. Step 4: Simplify right side
    18,665.44x = 835,314,765.79
  5. Step 5: Solve for x
    x = 835,314,765.79/18,665.44
  6. Step 6: Final answer
    x = 44,751.95

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.