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Finding the Third Proportional to 29,728 and 39,630.50

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Solution

The third proportional to 29,728 and 39,630.50 is: 52,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,728 : 39,630.50 = 39,630.50 : x
  2. Step 2: Convert to fraction form
    29,728/39,630.50 = 39,630.50/x
  3. Step 3: Cross multiply
    29,728x = 39,630.50 × 39,630.50
  4. Step 4: Simplify right side
    29,728x = 1,570,576,530.25
  5. Step 5: Solve for x
    x = 1,570,576,530.25/29,728
  6. Step 6: Final answer
    x = 52,831.56

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.