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Finding the Fourth Proportional to 17,364.99, 26,020.11 and 13,425.86

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Solution

The fourth proportional to 17,364.99, 26,020.11 and 13,425.86 is: 20,117.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,364.99 : 26,020.11 = 13,425.86 : x
  2. Step 2: Convert to fraction form
    17,364.99/26,020.11 = 13,425.86/x
  3. Step 3: Cross multiply
    17,364.99x = 26,020.11 × 13,425.86
  4. Step 4: Simplify right side
    17,364.99x = 349,342,223.94
  5. Step 5: Solve for x
    x = 349,342,223.94/17,364.99
  6. Step 6: Final answer
    x = 20,117.62

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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.