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Finding the Fourth Proportional to 43,198.63, 64,797.95 and 18,574.63

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Solution

The fourth proportional to 43,198.63, 64,797.95 and 18,574.63 is: 27,861.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,198.63 : 64,797.95 = 18,574.63 : x
  2. Step 2: Convert to fraction form
    43,198.63/64,797.95 = 18,574.63/x
  3. Step 3: Cross multiply
    43,198.63x = 64,797.95 × 18,574.63
  4. Step 4: Simplify right side
    43,198.63x = 1,203,597,946.01
  5. Step 5: Solve for x
    x = 1,203,597,946.01/43,198.63
  6. Step 6: Final answer
    x = 27,861.95

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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.