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Finding the Third Proportional to 47,256 and 74,136

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Solution

The third proportional to 47,256 and 74,136 is: 116,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,256 : 74,136 = 74,136 : x
  2. Step 2: Convert to fraction form
    47,256/74,136 = 74,136/x
  3. Step 3: Cross multiply
    47,256x = 74,136 × 74,136
  4. Step 4: Simplify right side
    47,256x = 5,496,146,496
  5. Step 5: Solve for x
    x = 5,496,146,496/47,256
  6. Step 6: Final answer
    x = 116,305.79

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.