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Finding the Fourth Proportional to 8,550.56, 12,792.12 and 6,476.56

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Solution

The fourth proportional to 8,550.56, 12,792.12 and 6,476.56 is: 9,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,550.56 : 12,792.12 = 6,476.56 : x
  2. Step 2: Convert to fraction form
    8,550.56/12,792.12 = 6,476.56/x
  3. Step 3: Cross multiply
    8,550.56x = 12,792.12 × 6,476.56
  4. Step 4: Simplify right side
    8,550.56x = 82,848,932.71
  5. Step 5: Solve for x
    x = 82,848,932.71/8,550.56
  6. Step 6: Final answer
    x = 9,689.30

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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.