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Finding the Fourth Proportional to 11,771,687.90, 16,442,571.70 and 11,771,687.90

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Solution

The fourth proportional to 11,771,687.90, 16,442,571.70 and 11,771,687.90 is: 16,442,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771,687.90 : 16,442,571.70 = 11,771,687.90 : x
  2. Step 2: Convert to fraction form
    11,771,687.90/16,442,571.70 = 11,771,687.90/x
  3. Step 3: Cross multiply
    11,771,687.90x = 16,442,571.70 × 11,771,687.90
  4. Step 4: Simplify right side
    11,771,687.90x = 193,556,822,325,772.44
  5. Step 5: Solve for x
    x = 193,556,822,325,772.44/11,771,687.90
  6. Step 6: Final answer
    x = 16,442,571.70

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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.