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Finding the Fourth Proportional to 17,072.70, 25,609.05 and 15,906.30

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Solution

The fourth proportional to 17,072.70, 25,609.05 and 15,906.30 is: 23,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,072.70 : 25,609.05 = 15,906.30 : x
  2. Step 2: Convert to fraction form
    17,072.70/25,609.05 = 15,906.30/x
  3. Step 3: Cross multiply
    17,072.70x = 25,609.05 × 15,906.30
  4. Step 4: Simplify right side
    17,072.70x = 407,345,232.02
  5. Step 5: Solve for x
    x = 407,345,232.02/17,072.70
  6. Step 6: Final answer
    x = 23,859.45

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Similar ratio
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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.