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Finding the Third Proportional to 18,120.38 and 36,750.25

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Solution

The third proportional to 18,120.38 and 36,750.25 is: 74,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.38 : 36,750.25 = 36,750.25 : x
  2. Step 2: Convert to fraction form
    18,120.38/36,750.25 = 36,750.25/x
  3. Step 3: Cross multiply
    18,120.38x = 36,750.25 × 36,750.25
  4. Step 4: Simplify right side
    18,120.38x = 1,350,580,875.06
  5. Step 5: Solve for x
    x = 1,350,580,875.06/18,120.38
  6. Step 6: Final answer
    x = 74,533.83

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.