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Finding the Third Proportional to 50,402 and 74,145

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Solution

The third proportional to 50,402 and 74,145 is: 109,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,402 : 74,145 = 74,145 : x
  2. Step 2: Convert to fraction form
    50,402/74,145 = 74,145/x
  3. Step 3: Cross multiply
    50,402x = 74,145 × 74,145
  4. Step 4: Simplify right side
    50,402x = 5,497,481,025
  5. Step 5: Solve for x
    x = 5,497,481,025/50,402
  6. Step 6: Final answer
    x = 109,072.68

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.