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Finding the Fourth Proportional to 7,791.66, 11,668.86 and 4,494.76

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Solution

The fourth proportional to 7,791.66, 11,668.86 and 4,494.76 is: 6,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.66 : 11,668.86 = 4,494.76 : x
  2. Step 2: Convert to fraction form
    7,791.66/11,668.86 = 4,494.76/x
  3. Step 3: Cross multiply
    7,791.66x = 11,668.86 × 4,494.76
  4. Step 4: Simplify right side
    7,791.66x = 52,448,696.00
  5. Step 5: Solve for x
    x = 52,448,696.00/7,791.66
  6. Step 6: Final answer
    x = 6,731.39

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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.