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Finding the Fourth Proportional to 17,245.38, 25,891.71 and 8,931.13

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Solution

The fourth proportional to 17,245.38, 25,891.71 and 8,931.13 is: 13,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,245.38 : 25,891.71 = 8,931.13 : x
  2. Step 2: Convert to fraction form
    17,245.38/25,891.71 = 8,931.13/x
  3. Step 3: Cross multiply
    17,245.38x = 25,891.71 × 8,931.13
  4. Step 4: Simplify right side
    17,245.38x = 231,242,227.93
  5. Step 5: Solve for x
    x = 231,242,227.93/17,245.38
  6. Step 6: Final answer
    x = 13,408.94

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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.