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Finding the Fourth Proportional to 5,858.64, 8,789.04 and 1,965.84

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Solution

The fourth proportional to 5,858.64, 8,789.04 and 1,965.84 is: 2,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.64 : 8,789.04 = 1,965.84 : x
  2. Step 2: Convert to fraction form
    5,858.64/8,789.04 = 1,965.84/x
  3. Step 3: Cross multiply
    5,858.64x = 8,789.04 × 1,965.84
  4. Step 4: Simplify right side
    5,858.64x = 17,277,846.39
  5. Step 5: Solve for x
    x = 17,277,846.39/5,858.64
  6. Step 6: Final answer
    x = 2,949.12

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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.