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Finding the Fourth Proportional to 17,225.20, 25,840.20 and 7,364.40

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Solution

The fourth proportional to 17,225.20, 25,840.20 and 7,364.40 is: 11,047.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,225.20 : 25,840.20 = 7,364.40 : x
  2. Step 2: Convert to fraction form
    17,225.20/25,840.20 = 7,364.40/x
  3. Step 3: Cross multiply
    17,225.20x = 25,840.20 × 7,364.40
  4. Step 4: Simplify right side
    17,225.20x = 190,297,568.88
  5. Step 5: Solve for x
    x = 190,297,568.88/17,225.20
  6. Step 6: Final answer
    x = 11,047.63

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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.