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Finding the Fourth Proportional to 7,897,997.70, 11,846,996.55 and 7,366,556.70

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Solution

The fourth proportional to 7,897,997.70, 11,846,996.55 and 7,366,556.70 is: 11,049,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897,997.70 : 11,846,996.55 = 7,366,556.70 : x
  2. Step 2: Convert to fraction form
    7,897,997.70/11,846,996.55 = 7,366,556.70/x
  3. Step 3: Cross multiply
    7,897,997.70x = 11,846,996.55 × 7,366,556.70
  4. Step 4: Simplify right side
    7,897,997.70x = 87,271,571,810,279.39
  5. Step 5: Solve for x
    x = 87,271,571,810,279.39/7,897,997.70
  6. Step 6: Final answer
    x = 11,049,835.05

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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.