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Finding the Fourth Proportional to 20,608,128,045.30, 30,912,192,067.95 and 20,608,128,045.30

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Solution

The fourth proportional to 20,608,128,045.30, 30,912,192,067.95 and 20,608,128,045.30 is: 30,912,192,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608,128,045.30 : 30,912,192,067.95 = 20,608,128,045.30 : x
  2. Step 2: Convert to fraction form
    20,608,128,045.30/30,912,192,067.95 = 20,608,128,045.30/x
  3. Step 3: Cross multiply
    20,608,128,045.30x = 30,912,192,067.95 × 20,608,128,045.30
  4. Step 4: Simplify right side
    20,608,128,045.30x = 637,042,412,297,220,653,056
  5. Step 5: Solve for x
    x = 637,042,412,297,220,653,056/20,608,128,045.30
  6. Step 6: Final answer
    x = 30,912,192,067.95

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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.