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Finding the Third Proportional to 47,390 and 99,696

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Solution

The third proportional to 47,390 and 99,696 is: 209,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,390 : 99,696 = 99,696 : x
  2. Step 2: Convert to fraction form
    47,390/99,696 = 99,696/x
  3. Step 3: Cross multiply
    47,390x = 99,696 × 99,696
  4. Step 4: Simplify right side
    47,390x = 9,939,292,416
  5. Step 5: Solve for x
    x = 9,939,292,416/47,390
  6. Step 6: Final answer
    x = 209,733.96

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.