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Finding the Fourth Proportional to 17,211.55, 25,828.25 and 7,350.91

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Solution

The fourth proportional to 17,211.55, 25,828.25 and 7,350.91 is: 11,031.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,211.55 : 25,828.25 = 7,350.91 : x
  2. Step 2: Convert to fraction form
    17,211.55/25,828.25 = 7,350.91/x
  3. Step 3: Cross multiply
    17,211.55x = 25,828.25 × 7,350.91
  4. Step 4: Simplify right side
    17,211.55x = 189,861,141.21
  5. Step 5: Solve for x
    x = 189,861,141.21/17,211.55
  6. Step 6: Final answer
    x = 11,031.03

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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.