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Finding the Fourth Proportional to 4,836.64, 7,255.68 and 2,239.84

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Solution

The fourth proportional to 4,836.64, 7,255.68 and 2,239.84 is: 3,360.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,836.64 : 7,255.68 = 2,239.84 : x
  2. Step 2: Convert to fraction form
    4,836.64/7,255.68 = 2,239.84/x
  3. Step 3: Cross multiply
    4,836.64x = 7,255.68 × 2,239.84
  4. Step 4: Simplify right side
    4,836.64x = 16,251,562.29
  5. Step 5: Solve for x
    x = 16,251,562.29/4,836.64
  6. Step 6: Final answer
    x = 3,360.09

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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.