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Finding the Fourth Proportional to 17,981,503,479.80, 26,972,255,219.70 and 17,981,503,479.80

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Solution

The fourth proportional to 17,981,503,479.80, 26,972,255,219.70 and 17,981,503,479.80 is: 26,972,255,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,981,503,479.80 : 26,972,255,219.70 = 17,981,503,479.80 : x
  2. Step 2: Convert to fraction form
    17,981,503,479.80/26,972,255,219.70 = 17,981,503,479.80/x
  3. Step 3: Cross multiply
    17,981,503,479.80x = 26,972,255,219.70 × 17,981,503,479.80
  4. Step 4: Simplify right side
    17,981,503,479.80x = 485,001,701,091,089,252,352
  5. Step 5: Solve for x
    x = 485,001,701,091,089,252,352/17,981,503,479.80
  6. Step 6: Final answer
    x = 26,972,255,219.70

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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.