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Finding the Fourth Proportional to 7,858.66, 10,845.22 and 4,322.02

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Solution

The fourth proportional to 7,858.66, 10,845.22 and 4,322.02 is: 5,964.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.66 : 10,845.22 = 4,322.02 : x
  2. Step 2: Convert to fraction form
    7,858.66/10,845.22 = 4,322.02/x
  3. Step 3: Cross multiply
    7,858.66x = 10,845.22 × 4,322.02
  4. Step 4: Simplify right side
    7,858.66x = 46,873,257.74
  5. Step 5: Solve for x
    x = 46,873,257.74/7,858.66
  6. Step 6: Final answer
    x = 5,964.54

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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.