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Finding the Third Proportional to 28,020.94 and 42,236.44

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Solution

The third proportional to 28,020.94 and 42,236.44 is: 63,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.94 : 42,236.44 = 42,236.44 : x
  2. Step 2: Convert to fraction form
    28,020.94/42,236.44 = 42,236.44/x
  3. Step 3: Cross multiply
    28,020.94x = 42,236.44 × 42,236.44
  4. Step 4: Simplify right side
    28,020.94x = 1,783,916,652.69
  5. Step 5: Solve for x
    x = 1,783,916,652.69/28,020.94
  6. Step 6: Final answer
    x = 63,663.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.