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Finding the Third Proportional to 39,888 and 58,912

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Solution

The third proportional to 39,888 and 58,912 is: 87,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,888 : 58,912 = 58,912 : x
  2. Step 2: Convert to fraction form
    39,888/58,912 = 58,912/x
  3. Step 3: Cross multiply
    39,888x = 58,912 × 58,912
  4. Step 4: Simplify right side
    39,888x = 3,470,623,744
  5. Step 5: Solve for x
    x = 3,470,623,744/39,888
  6. Step 6: Final answer
    x = 87,009.22

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.