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Finding the Fourth Proportional to 8,665.08, 11,956.24 and 4,939.08

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Solution

The fourth proportional to 8,665.08, 11,956.24 and 4,939.08 is: 6,815.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.08 : 11,956.24 = 4,939.08 : x
  2. Step 2: Convert to fraction form
    8,665.08/11,956.24 = 4,939.08/x
  3. Step 3: Cross multiply
    8,665.08x = 11,956.24 × 4,939.08
  4. Step 4: Simplify right side
    8,665.08x = 59,052,825.86
  5. Step 5: Solve for x
    x = 59,052,825.86/8,665.08
  6. Step 6: Final answer
    x = 6,815.04

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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.