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Finding the Third Proportional to 18,239.45 and 28,168.38

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Solution

The third proportional to 18,239.45 and 28,168.38 is: 43,502.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.45 : 28,168.38 = 28,168.38 : x
  2. Step 2: Convert to fraction form
    18,239.45/28,168.38 = 28,168.38/x
  3. Step 3: Cross multiply
    18,239.45x = 28,168.38 × 28,168.38
  4. Step 4: Simplify right side
    18,239.45x = 793,457,790.27
  5. Step 5: Solve for x
    x = 793,457,790.27/18,239.45
  6. Step 6: Final answer
    x = 43,502.29

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.