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Finding the Fourth Proportional to 17,130.15, 25,658.01 and 16,711.97

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Solution

The fourth proportional to 17,130.15, 25,658.01 and 16,711.97 is: 25,031.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.15 : 25,658.01 = 16,711.97 : x
  2. Step 2: Convert to fraction form
    17,130.15/25,658.01 = 16,711.97/x
  3. Step 3: Cross multiply
    17,130.15x = 25,658.01 × 16,711.97
  4. Step 4: Simplify right side
    17,130.15x = 428,795,765.09
  5. Step 5: Solve for x
    x = 428,795,765.09/17,130.15
  6. Step 6: Final answer
    x = 25,031.64

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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.