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Finding the Third Proportional to 50,090 and 75,009

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Solution

The third proportional to 50,090 and 75,009 is: 112,324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,090 : 75,009 = 75,009 : x
  2. Step 2: Convert to fraction form
    50,090/75,009 = 75,009/x
  3. Step 3: Cross multiply
    50,090x = 75,009 × 75,009
  4. Step 4: Simplify right side
    50,090x = 5,626,350,081
  5. Step 5: Solve for x
    x = 5,626,350,081/50,090
  6. Step 6: Final answer
    x = 112,324.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.