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Finding the Fourth Proportional to 19,366.56, 29,049.21 and 5,515.56

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Solution

The fourth proportional to 19,366.56, 29,049.21 and 5,515.56 is: 8,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,366.56 : 29,049.21 = 5,515.56 : x
  2. Step 2: Convert to fraction form
    19,366.56/29,049.21 = 5,515.56/x
  3. Step 3: Cross multiply
    19,366.56x = 29,049.21 × 5,515.56
  4. Step 4: Simplify right side
    19,366.56x = 160,222,660.71
  5. Step 5: Solve for x
    x = 160,222,660.71/19,366.56
  6. Step 6: Final answer
    x = 8,273.16

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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.