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Finding the Fourth Proportional to 55,231.60, 82,861.20 and 17,795.20

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Solution

The fourth proportional to 55,231.60, 82,861.20 and 17,795.20 is: 26,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,231.60 : 82,861.20 = 17,795.20 : x
  2. Step 2: Convert to fraction form
    55,231.60/82,861.20 = 17,795.20/x
  3. Step 3: Cross multiply
    55,231.60x = 82,861.20 × 17,795.20
  4. Step 4: Simplify right side
    55,231.60x = 1,474,531,626.24
  5. Step 5: Solve for x
    x = 1,474,531,626.24/55,231.60
  6. Step 6: Final answer
    x = 26,697.25

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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.