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Finding the Third Proportional to 49,256 and 66,972

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Solution

The third proportional to 49,256 and 66,972 is: 91,059.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,256 : 66,972 = 66,972 : x
  2. Step 2: Convert to fraction form
    49,256/66,972 = 66,972/x
  3. Step 3: Cross multiply
    49,256x = 66,972 × 66,972
  4. Step 4: Simplify right side
    49,256x = 4,485,248,784
  5. Step 5: Solve for x
    x = 4,485,248,784/49,256
  6. Step 6: Final answer
    x = 91,059.95

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.