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Finding the Third Proportional to 26,388 and 57,128

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Solution

The third proportional to 26,388 and 57,128 is: 123,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,388 : 57,128 = 57,128 : x
  2. Step 2: Convert to fraction form
    26,388/57,128 = 57,128/x
  3. Step 3: Cross multiply
    26,388x = 57,128 × 57,128
  4. Step 4: Simplify right side
    26,388x = 3,263,608,384
  5. Step 5: Solve for x
    x = 3,263,608,384/26,388
  6. Step 6: Final answer
    x = 123,677.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.