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Finding the Fourth Proportional to 12,822,907,645.20, 19,234,361,467.80 and 12,822,907,645.20

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Solution

The fourth proportional to 12,822,907,645.20, 19,234,361,467.80 and 12,822,907,645.20 is: 19,234,361,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822,907,645.20 : 19,234,361,467.80 = 12,822,907,645.20 : x
  2. Step 2: Convert to fraction form
    12,822,907,645.20/19,234,361,467.80 = 12,822,907,645.20/x
  3. Step 3: Cross multiply
    12,822,907,645.20x = 19,234,361,467.80 × 12,822,907,645.20
  4. Step 4: Simplify right side
    12,822,907,645.20x = 246,640,440,715,992,924,160
  5. Step 5: Solve for x
    x = 246,640,440,715,992,924,160/12,822,907,645.20
  6. Step 6: Final answer
    x = 19,234,361,467.80

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Double scale
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Similar ratio
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1.5x scale

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.