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Finding the Fourth Proportional to 8,599.56, 12,891.78 and 3,409.08

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Solution

The fourth proportional to 8,599.56, 12,891.78 and 3,409.08 is: 5,110.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.56 : 12,891.78 = 3,409.08 : x
  2. Step 2: Convert to fraction form
    8,599.56/12,891.78 = 3,409.08/x
  3. Step 3: Cross multiply
    8,599.56x = 12,891.78 × 3,409.08
  4. Step 4: Simplify right side
    8,599.56x = 43,949,109.36
  5. Step 5: Solve for x
    x = 43,949,109.36/8,599.56
  6. Step 6: Final answer
    x = 5,110.62

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1.5x scale

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.