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Finding the Fourth Proportional to 55,175.60, 82,797.60 and 28,899.20

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Solution

The fourth proportional to 55,175.60, 82,797.60 and 28,899.20 is: 43,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,175.60 : 82,797.60 = 28,899.20 : x
  2. Step 2: Convert to fraction form
    55,175.60/82,797.60 = 28,899.20/x
  3. Step 3: Cross multiply
    55,175.60x = 82,797.60 × 28,899.20
  4. Step 4: Simplify right side
    55,175.60x = 2,392,784,401.92
  5. Step 5: Solve for x
    x = 2,392,784,401.92/55,175.60
  6. Step 6: Final answer
    x = 43,366.71

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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.