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Finding the Fourth Proportional to 17,238.91, 25,858.93 and 4,759.87

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Solution

The fourth proportional to 17,238.91, 25,858.93 and 4,759.87 is: 7,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,238.91 : 25,858.93 = 4,759.87 : x
  2. Step 2: Convert to fraction form
    17,238.91/25,858.93 = 4,759.87/x
  3. Step 3: Cross multiply
    17,238.91x = 25,858.93 × 4,759.87
  4. Step 4: Simplify right side
    17,238.91x = 123,085,121.34
  5. Step 5: Solve for x
    x = 123,085,121.34/17,238.91
  6. Step 6: Final answer
    x = 7,139.96

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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.