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Finding the Fourth Proportional to 8,556.66, 12,829.46 and 5,626.08

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Solution

The fourth proportional to 8,556.66, 12,829.46 and 5,626.08 is: 8,435.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.66 : 12,829.46 = 5,626.08 : x
  2. Step 2: Convert to fraction form
    8,556.66/12,829.46 = 5,626.08/x
  3. Step 3: Cross multiply
    8,556.66x = 12,829.46 × 5,626.08
  4. Step 4: Simplify right side
    8,556.66x = 72,179,540.19
  5. Step 5: Solve for x
    x = 72,179,540.19/8,556.66
  6. Step 6: Final answer
    x = 8,435.48

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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.