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Finding the Fourth Proportional to 18,587,578.00, 27,871,745.02 and 8,343,616.78

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Solution

The fourth proportional to 18,587,578.00, 27,871,745.02 and 8,343,616.78 is: 12,511,106.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587,578.00 : 27,871,745.02 = 8,343,616.78 : x
  2. Step 2: Convert to fraction form
    18,587,578.00/27,871,745.02 = 8,343,616.78/x
  3. Step 3: Cross multiply
    18,587,578.00x = 27,871,745.02 × 8,343,616.78
  4. Step 4: Simplify right side
    18,587,578.00x = 232,551,159,408,143.69
  5. Step 5: Solve for x
    x = 232,551,159,408,143.69/18,587,578.00
  6. Step 6: Final answer
    x = 12,511,106.04

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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.