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Finding the Fourth Proportional to 18,597,861.92, 27,897,078.96 and 7,083,971.22

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Solution

The fourth proportional to 18,597,861.92, 27,897,078.96 and 7,083,971.22 is: 10,626,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597,861.92 : 27,897,078.96 = 7,083,971.22 : x
  2. Step 2: Convert to fraction form
    18,597,861.92/27,897,078.96 = 7,083,971.22/x
  3. Step 3: Cross multiply
    18,597,861.92x = 27,897,078.96 × 7,083,971.22
  4. Step 4: Simplify right side
    18,597,861.92x = 197,622,104,474,707.53
  5. Step 5: Solve for x
    x = 197,622,104,474,707.53/18,597,861.92
  6. Step 6: Final answer
    x = 10,626,065.80

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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.