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Finding the Fourth Proportional to 17,299.88, 25,951.64 and 7,938.30

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Solution

The fourth proportional to 17,299.88, 25,951.64 and 7,938.30 is: 11,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,299.88 : 25,951.64 = 7,938.30 : x
  2. Step 2: Convert to fraction form
    17,299.88/25,951.64 = 7,938.30/x
  3. Step 3: Cross multiply
    17,299.88x = 25,951.64 × 7,938.30
  4. Step 4: Simplify right side
    17,299.88x = 206,011,864.12
  5. Step 5: Solve for x
    x = 206,011,864.12/17,299.88
  6. Step 6: Final answer
    x = 11,908.29

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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.