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Finding the Fourth Proportional to 17,189.60, 25,785.74 and 7,328.94

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Solution

The fourth proportional to 17,189.60, 25,785.74 and 7,328.94 is: 10,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,189.60 : 25,785.74 = 7,328.94 : x
  2. Step 2: Convert to fraction form
    17,189.60/25,785.74 = 7,328.94/x
  3. Step 3: Cross multiply
    17,189.60x = 25,785.74 × 7,328.94
  4. Step 4: Simplify right side
    17,189.60x = 188,982,104.67
  5. Step 5: Solve for x
    x = 188,982,104.67/17,189.60
  6. Step 6: Final answer
    x = 10,993.98

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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.