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Finding the Fourth Proportional to 55,040.40, 82,544.40 and 15,600.96

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Solution

The fourth proportional to 55,040.40, 82,544.40 and 15,600.96 is: 23,396.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,040.40 : 82,544.40 = 15,600.96 : x
  2. Step 2: Convert to fraction form
    55,040.40/82,544.40 = 15,600.96/x
  3. Step 3: Cross multiply
    55,040.40x = 82,544.40 × 15,600.96
  4. Step 4: Simplify right side
    55,040.40x = 1,287,771,882.62
  5. Step 5: Solve for x
    x = 1,287,771,882.62/55,040.40
  6. Step 6: Final answer
    x = 23,396.85

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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.