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Finding the Fourth Proportional to 17,893.12, 26,839.68 and 7,516.48

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Solution

The fourth proportional to 17,893.12, 26,839.68 and 7,516.48 is: 11,274.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,893.12 : 26,839.68 = 7,516.48 : x
  2. Step 2: Convert to fraction form
    17,893.12/26,839.68 = 7,516.48/x
  3. Step 3: Cross multiply
    17,893.12x = 26,839.68 × 7,516.48
  4. Step 4: Simplify right side
    17,893.12x = 201,739,917.93
  5. Step 5: Solve for x
    x = 201,739,917.93/17,893.12
  6. Step 6: Final answer
    x = 11,274.72

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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.