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Finding the Fourth Proportional to 8,393.97, 11,584.28 and 5,556.39

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Solution

The fourth proportional to 8,393.97, 11,584.28 and 5,556.39 is: 7,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.97 : 11,584.28 = 5,556.39 : x
  2. Step 2: Convert to fraction form
    8,393.97/11,584.28 = 5,556.39/x
  3. Step 3: Cross multiply
    8,393.97x = 11,584.28 × 5,556.39
  4. Step 4: Simplify right side
    8,393.97x = 64,366,749.77
  5. Step 5: Solve for x
    x = 64,366,749.77/8,393.97
  6. Step 6: Final answer
    x = 7,668.21

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1.5x scale

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.