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Finding the Fourth Proportional to 55,197.44, 82,830.08 and 21,911.68

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Solution

The fourth proportional to 55,197.44, 82,830.08 and 21,911.68 is: 32,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,197.44 : 82,830.08 = 21,911.68 : x
  2. Step 2: Convert to fraction form
    55,197.44/82,830.08 = 21,911.68/x
  3. Step 3: Cross multiply
    55,197.44x = 82,830.08 × 21,911.68
  4. Step 4: Simplify right side
    55,197.44x = 1,814,946,207.33
  5. Step 5: Solve for x
    x = 1,814,946,207.33/55,197.44
  6. Step 6: Final answer
    x = 32,880.99

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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.