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Finding the Fourth Proportional to 17,297.70, 25,897.95 and 16,811.70

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Solution

The fourth proportional to 17,297.70, 25,897.95 and 16,811.70 is: 25,170.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,297.70 : 25,897.95 = 16,811.70 : x
  2. Step 2: Convert to fraction form
    17,297.70/25,897.95 = 16,811.70/x
  3. Step 3: Cross multiply
    17,297.70x = 25,897.95 × 16,811.70
  4. Step 4: Simplify right side
    17,297.70x = 435,388,566.02
  5. Step 5: Solve for x
    x = 435,388,566.02/17,297.70
  6. Step 6: Final answer
    x = 25,170.32

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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.