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Finding the Fourth Proportional to 11,590,963.20, 16,260,940.80 and 11,590,963.20

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Solution

The fourth proportional to 11,590,963.20, 16,260,940.80 and 11,590,963.20 is: 16,260,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,590,963.20 : 16,260,940.80 = 11,590,963.20 : x
  2. Step 2: Convert to fraction form
    11,590,963.20/16,260,940.80 = 11,590,963.20/x
  3. Step 3: Cross multiply
    11,590,963.20x = 16,260,940.80 × 11,590,963.20
  4. Step 4: Simplify right side
    11,590,963.20x = 188,479,966,410,178.56
  5. Step 5: Solve for x
    x = 188,479,966,410,178.56/11,590,963.20
  6. Step 6: Final answer
    x = 16,260,940.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.