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Finding the Fourth Proportional to 17,251.98, 25,869.78 and 7,889.22

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Solution

The fourth proportional to 17,251.98, 25,869.78 and 7,889.22 is: 11,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,251.98 : 25,869.78 = 7,889.22 : x
  2. Step 2: Convert to fraction form
    17,251.98/25,869.78 = 7,889.22/x
  3. Step 3: Cross multiply
    17,251.98x = 25,869.78 × 7,889.22
  4. Step 4: Simplify right side
    17,251.98x = 204,092,385.77
  5. Step 5: Solve for x
    x = 204,092,385.77/17,251.98
  6. Step 6: Final answer
    x = 11,830.08

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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.