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Finding the Fourth Proportional to 17,165.28, 25,739.68 and 7,299.21

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Solution

The fourth proportional to 17,165.28, 25,739.68 and 7,299.21 is: 10,945.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,165.28 : 25,739.68 = 7,299.21 : x
  2. Step 2: Convert to fraction form
    17,165.28/25,739.68 = 7,299.21/x
  3. Step 3: Cross multiply
    17,165.28x = 25,739.68 × 7,299.21
  4. Step 4: Simplify right side
    17,165.28x = 187,879,329.65
  5. Step 5: Solve for x
    x = 187,879,329.65/17,165.28
  6. Step 6: Final answer
    x = 10,945.31

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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.