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Finding the Fourth Proportional to 17,269.80, 25,904.64 and 7,402.68

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Solution

The fourth proportional to 17,269.80, 25,904.64 and 7,402.68 is: 11,103.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,269.80 : 25,904.64 = 7,402.68 : x
  2. Step 2: Convert to fraction form
    17,269.80/25,904.64 = 7,402.68/x
  3. Step 3: Cross multiply
    17,269.80x = 25,904.64 × 7,402.68
  4. Step 4: Simplify right side
    17,269.80x = 191,763,760.44
  5. Step 5: Solve for x
    x = 191,763,760.44/17,269.80
  6. Step 6: Final answer
    x = 11,103.99

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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.