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Finding the Third Proportional to 18,705,460 and 40,195,696

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Solution

The third proportional to 18,705,460 and 40,195,696 is: 86,375,527.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705,460 : 40,195,696 = 40,195,696 : x
  2. Step 2: Convert to fraction form
    18,705,460/40,195,696 = 40,195,696/x
  3. Step 3: Cross multiply
    18,705,460x = 40,195,696 × 40,195,696
  4. Step 4: Simplify right side
    18,705,460x = 1,615,693,976,924,416
  5. Step 5: Solve for x
    x = 1,615,693,976,924,416/18,705,460
  6. Step 6: Final answer
    x = 86,375,527.62

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.