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Finding the Fourth Proportional to 40,650.98, 60,978.51 and 12,951.14

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Solution

The fourth proportional to 40,650.98, 60,978.51 and 12,951.14 is: 19,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,650.98 : 60,978.51 = 12,951.14 : x
  2. Step 2: Convert to fraction form
    40,650.98/60,978.51 = 12,951.14/x
  3. Step 3: Cross multiply
    40,650.98x = 60,978.51 × 12,951.14
  4. Step 4: Simplify right side
    40,650.98x = 789,741,220.00
  5. Step 5: Solve for x
    x = 789,741,220.00/40,650.98
  6. Step 6: Final answer
    x = 19,427.36

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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.