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Finding the Fourth Proportional to 17,205.44, 25,809.72 and 8,889.44

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Solution

The fourth proportional to 17,205.44, 25,809.72 and 8,889.44 is: 13,334.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,205.44 : 25,809.72 = 8,889.44 : x
  2. Step 2: Convert to fraction form
    17,205.44/25,809.72 = 8,889.44/x
  3. Step 3: Cross multiply
    17,205.44x = 25,809.72 × 8,889.44
  4. Step 4: Simplify right side
    17,205.44x = 229,433,957.36
  5. Step 5: Solve for x
    x = 229,433,957.36/17,205.44
  6. Step 6: Final answer
    x = 13,334.97

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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.