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Finding the Third Proportional to 53,640 and 75,028

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Solution

The third proportional to 53,640 and 75,028 is: 104,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,640 : 75,028 = 75,028 : x
  2. Step 2: Convert to fraction form
    53,640/75,028 = 75,028/x
  3. Step 3: Cross multiply
    53,640x = 75,028 × 75,028
  4. Step 4: Simplify right side
    53,640x = 5,629,200,784
  5. Step 5: Solve for x
    x = 5,629,200,784/53,640
  6. Step 6: Final answer
    x = 104,944.09

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.