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Finding the Fourth Proportional to 28,015.44, 42,023.64 and 8,293.96

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Solution

The fourth proportional to 28,015.44, 42,023.64 and 8,293.96 is: 12,441.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.44 : 42,023.64 = 8,293.96 : x
  2. Step 2: Convert to fraction form
    28,015.44/42,023.64 = 8,293.96/x
  3. Step 3: Cross multiply
    28,015.44x = 42,023.64 × 8,293.96
  4. Step 4: Simplify right side
    28,015.44x = 348,542,389.21
  5. Step 5: Solve for x
    x = 348,542,389.21/28,015.44
  6. Step 6: Final answer
    x = 12,441.08

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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.