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Finding the Fourth Proportional to 19,049.92, 28,574.88 and 5,198.92

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Solution

The fourth proportional to 19,049.92, 28,574.88 and 5,198.92 is: 7,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,049.92 : 28,574.88 = 5,198.92 : x
  2. Step 2: Convert to fraction form
    19,049.92/28,574.88 = 5,198.92/x
  3. Step 3: Cross multiply
    19,049.92x = 28,574.88 × 5,198.92
  4. Step 4: Simplify right side
    19,049.92x = 148,558,515.13
  5. Step 5: Solve for x
    x = 148,558,515.13/19,049.92
  6. Step 6: Final answer
    x = 7,798.38

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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.