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Finding the Fourth Proportional to 11,716.32, 17,574.48 and 5,558.88

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Solution

The fourth proportional to 11,716.32, 17,574.48 and 5,558.88 is: 8,338.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.32 : 17,574.48 = 5,558.88 : x
  2. Step 2: Convert to fraction form
    11,716.32/17,574.48 = 5,558.88/x
  3. Step 3: Cross multiply
    11,716.32x = 17,574.48 × 5,558.88
  4. Step 4: Simplify right side
    11,716.32x = 97,694,425.38
  5. Step 5: Solve for x
    x = 97,694,425.38/11,716.32
  6. Step 6: Final answer
    x = 8,338.32

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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.