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Finding the Third Proportional to 18,333.21 and 28,368.35

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Solution

The third proportional to 18,333.21 and 28,368.35 is: 43,896.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.21 : 28,368.35 = 28,368.35 : x
  2. Step 2: Convert to fraction form
    18,333.21/28,368.35 = 28,368.35/x
  3. Step 3: Cross multiply
    18,333.21x = 28,368.35 × 28,368.35
  4. Step 4: Simplify right side
    18,333.21x = 804,763,370.37
  5. Step 5: Solve for x
    x = 804,763,370.37/18,333.21
  6. Step 6: Final answer
    x = 43,896.48

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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.