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Finding the Fourth Proportional to 54,847.40, 82,273.80 and 28,603.40

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Solution

The fourth proportional to 54,847.40, 82,273.80 and 28,603.40 is: 42,906.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,847.40 : 82,273.80 = 28,603.40 : x
  2. Step 2: Convert to fraction form
    54,847.40/82,273.80 = 28,603.40/x
  3. Step 3: Cross multiply
    54,847.40x = 82,273.80 × 28,603.40
  4. Step 4: Simplify right side
    54,847.40x = 2,353,310,410.92
  5. Step 5: Solve for x
    x = 2,353,310,410.92/54,847.40
  6. Step 6: Final answer
    x = 42,906.51

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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.