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Finding the Fourth Proportional to 7,897,997.20, 11,826,000.60 and 7,897,997.20

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Solution

The fourth proportional to 7,897,997.20, 11,826,000.60 and 7,897,997.20 is: 11,826,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897,997.20 : 11,826,000.60 = 7,897,997.20 : x
  2. Step 2: Convert to fraction form
    7,897,997.20/11,826,000.60 = 7,897,997.20/x
  3. Step 3: Cross multiply
    7,897,997.20x = 11,826,000.60 × 7,897,997.20
  4. Step 4: Simplify right side
    7,897,997.20x = 93,401,719,625,998.31
  5. Step 5: Solve for x
    x = 93,401,719,625,998.31/7,897,997.20
  6. Step 6: Final answer
    x = 11,826,000.60

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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.