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Finding the Fourth Proportional to 60,226.88, 90,371.16 and 28,672.64

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Solution

The fourth proportional to 60,226.88, 90,371.16 and 28,672.64 is: 43,023.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,226.88 : 90,371.16 = 28,672.64 : x
  2. Step 2: Convert to fraction form
    60,226.88/90,371.16 = 28,672.64/x
  3. Step 3: Cross multiply
    60,226.88x = 90,371.16 × 28,672.64
  4. Step 4: Simplify right side
    60,226.88x = 2,591,179,737.06
  5. Step 5: Solve for x
    x = 2,591,179,737.06/60,226.88
  6. Step 6: Final answer
    x = 43,023.64

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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.