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Finding the Fourth Proportional to 7,892.64, 11,835.59 and 2,958.86

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Solution

The fourth proportional to 7,892.64, 11,835.59 and 2,958.86 is: 4,437.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.64 : 11,835.59 = 2,958.86 : x
  2. Step 2: Convert to fraction form
    7,892.64/11,835.59 = 2,958.86/x
  3. Step 3: Cross multiply
    7,892.64x = 11,835.59 × 2,958.86
  4. Step 4: Simplify right side
    7,892.64x = 35,019,868.62
  5. Step 5: Solve for x
    x = 35,019,868.62/7,892.64
  6. Step 6: Final answer
    x = 4,437.03

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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.