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Finding the Fourth Proportional to 11,763,972.80, 17,608,634.40 and 11,763,972.80

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Solution

The fourth proportional to 11,763,972.80, 17,608,634.40 and 11,763,972.80 is: 17,608,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763,972.80 : 17,608,634.40 = 11,763,972.80 : x
  2. Step 2: Convert to fraction form
    11,763,972.80/17,608,634.40 = 11,763,972.80/x
  3. Step 3: Cross multiply
    11,763,972.80x = 17,608,634.40 × 11,763,972.80
  4. Step 4: Simplify right side
    11,763,972.80x = 207,147,496,126,744.31
  5. Step 5: Solve for x
    x = 207,147,496,126,744.31/11,763,972.80
  6. Step 6: Final answer
    x = 17,608,634.40

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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.