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Finding the Fourth Proportional to 17,568.40, 26,339.80 and 7,174.80

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Solution

The fourth proportional to 17,568.40, 26,339.80 and 7,174.80 is: 10,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,568.40 : 26,339.80 = 7,174.80 : x
  2. Step 2: Convert to fraction form
    17,568.40/26,339.80 = 7,174.80/x
  3. Step 3: Cross multiply
    17,568.40x = 26,339.80 × 7,174.80
  4. Step 4: Simplify right side
    17,568.40x = 188,982,797.04
  5. Step 5: Solve for x
    x = 188,982,797.04/17,568.40
  6. Step 6: Final answer
    x = 10,756.97

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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.