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Finding the Fourth Proportional to 34,704.80, 52,018.80 and 19,133.60

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Solution

The fourth proportional to 34,704.80, 52,018.80 and 19,133.60 is: 28,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,704.80 : 52,018.80 = 19,133.60 : x
  2. Step 2: Convert to fraction form
    34,704.80/52,018.80 = 19,133.60/x
  3. Step 3: Cross multiply
    34,704.80x = 52,018.80 × 19,133.60
  4. Step 4: Simplify right side
    34,704.80x = 995,306,911.68
  5. Step 5: Solve for x
    x = 995,306,911.68/34,704.80
  6. Step 6: Final answer
    x = 28,679.23

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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.