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Finding the Fourth Proportional to 19,049.20, 28,573.80 and 7,952.20

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Solution

The fourth proportional to 19,049.20, 28,573.80 and 7,952.20 is: 11,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,049.20 : 28,573.80 = 7,952.20 : x
  2. Step 2: Convert to fraction form
    19,049.20/28,573.80 = 7,952.20/x
  3. Step 3: Cross multiply
    19,049.20x = 28,573.80 × 7,952.20
  4. Step 4: Simplify right side
    19,049.20x = 227,224,572.36
  5. Step 5: Solve for x
    x = 227,224,572.36/19,049.20
  6. Step 6: Final answer
    x = 11,928.30

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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.