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Finding the Fourth Proportional to 7,897,654.40, 11,846,481.52 and 1,914,022.40

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Solution

The fourth proportional to 7,897,654.40, 11,846,481.52 and 1,914,022.40 is: 2,871,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897,654.40 : 11,846,481.52 = 1,914,022.40 : x
  2. Step 2: Convert to fraction form
    7,897,654.40/11,846,481.52 = 1,914,022.40/x
  3. Step 3: Cross multiply
    7,897,654.40x = 11,846,481.52 × 1,914,022.40
  4. Step 4: Simplify right side
    7,897,654.40x = 22,674,430,990,466.05
  5. Step 5: Solve for x
    x = 22,674,430,990,466.05/7,897,654.40
  6. Step 6: Final answer
    x = 2,871,033.58

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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.