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Finding the Fourth Proportional to 34,188.80, 51,225.60 and 16,620.80

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Solution

The fourth proportional to 34,188.80, 51,225.60 and 16,620.80 is: 24,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,188.80 : 51,225.60 = 16,620.80 : x
  2. Step 2: Convert to fraction form
    34,188.80/51,225.60 = 16,620.80/x
  3. Step 3: Cross multiply
    34,188.80x = 51,225.60 × 16,620.80
  4. Step 4: Simplify right side
    34,188.80x = 851,410,452.48
  5. Step 5: Solve for x
    x = 851,410,452.48/34,188.80
  6. Step 6: Final answer
    x = 24,903.20

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1.5x scale

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.