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Finding the Fourth Proportional to 19,928.96, 29,895.58 and 7,454.96

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Solution

The fourth proportional to 19,928.96, 29,895.58 and 7,454.96 is: 11,183.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.96 : 29,895.58 = 7,454.96 : x
  2. Step 2: Convert to fraction form
    19,928.96/29,895.58 = 7,454.96/x
  3. Step 3: Cross multiply
    19,928.96x = 29,895.58 × 7,454.96
  4. Step 4: Simplify right side
    19,928.96x = 222,870,353.08
  5. Step 5: Solve for x
    x = 222,870,353.08/19,928.96
  6. Step 6: Final answer
    x = 11,183.24

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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.