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Finding the Fourth Proportional to 11,885,981,039.70, 17,828,971,559.55 and 11,885,981,039.70

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Solution

The fourth proportional to 11,885,981,039.70, 17,828,971,559.55 and 11,885,981,039.70 is: 17,828,971,559.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885,981,039.70 : 17,828,971,559.55 = 11,885,981,039.70 : x
  2. Step 2: Convert to fraction form
    11,885,981,039.70/17,828,971,559.55 = 11,885,981,039.70/x
  3. Step 3: Cross multiply
    11,885,981,039.70x = 17,828,971,559.55 × 11,885,981,039.70
  4. Step 4: Simplify right side
    11,885,981,039.70x = 211,914,817,914,161,856,512
  5. Step 5: Solve for x
    x = 211,914,817,914,161,856,512/11,885,981,039.70
  6. Step 6: Final answer
    x = 17,828,971,559.55

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.