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Finding the Fourth Proportional to 17,121.88, 25,684.71 and 7,262.02

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Solution

The fourth proportional to 17,121.88, 25,684.71 and 7,262.02 is: 10,893.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.88 : 25,684.71 = 7,262.02 : x
  2. Step 2: Convert to fraction form
    17,121.88/25,684.71 = 7,262.02/x
  3. Step 3: Cross multiply
    17,121.88x = 25,684.71 × 7,262.02
  4. Step 4: Simplify right side
    17,121.88x = 186,522,877.71
  5. Step 5: Solve for x
    x = 186,522,877.71/17,121.88
  6. Step 6: Final answer
    x = 10,893.83

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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.