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Finding the Third Proportional to 39,656 and 57,296

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Solution

The third proportional to 39,656 and 57,296 is: 82,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,656 : 57,296 = 57,296 : x
  2. Step 2: Convert to fraction form
    39,656/57,296 = 57,296/x
  3. Step 3: Cross multiply
    39,656x = 57,296 × 57,296
  4. Step 4: Simplify right side
    39,656x = 3,282,831,616
  5. Step 5: Solve for x
    x = 3,282,831,616/39,656
  6. Step 6: Final answer
    x = 82,782.72

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.