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Finding the Third Proportional to 47,128 and 98,072

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Solution

The third proportional to 47,128 and 98,072 is: 204,084.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128 : 98,072 = 98,072 : x
  2. Step 2: Convert to fraction form
    47,128/98,072 = 98,072/x
  3. Step 3: Cross multiply
    47,128x = 98,072 × 98,072
  4. Step 4: Simplify right side
    47,128x = 9,618,117,184
  5. Step 5: Solve for x
    x = 9,618,117,184/47,128
  6. Step 6: Final answer
    x = 204,084.99

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.