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Finding the Fourth Proportional to 34,180.80, 51,280.80 and 16,651.20

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Solution

The fourth proportional to 34,180.80, 51,280.80 and 16,651.20 is: 24,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,180.80 : 51,280.80 = 16,651.20 : x
  2. Step 2: Convert to fraction form
    34,180.80/51,280.80 = 16,651.20/x
  3. Step 3: Cross multiply
    34,180.80x = 51,280.80 × 16,651.20
  4. Step 4: Simplify right side
    34,180.80x = 853,886,856.96
  5. Step 5: Solve for x
    x = 853,886,856.96/34,180.80
  6. Step 6: Final answer
    x = 24,981.48

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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.