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Finding the Fourth Proportional to 8,873.15, 12,249.63 and 5,731.16

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Solution

The fourth proportional to 8,873.15, 12,249.63 and 5,731.16 is: 7,912.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873.15 : 12,249.63 = 5,731.16 : x
  2. Step 2: Convert to fraction form
    8,873.15/12,249.63 = 5,731.16/x
  3. Step 3: Cross multiply
    8,873.15x = 12,249.63 × 5,731.16
  4. Step 4: Simplify right side
    8,873.15x = 70,204,528.22
  5. Step 5: Solve for x
    x = 70,204,528.22/8,873.15
  6. Step 6: Final answer
    x = 7,912.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.