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Finding the Fourth Proportional to 17,963.15, 26,932.99 and 8,602.86

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Solution

The fourth proportional to 17,963.15, 26,932.99 and 8,602.86 is: 12,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,963.15 : 26,932.99 = 8,602.86 : x
  2. Step 2: Convert to fraction form
    17,963.15/26,932.99 = 8,602.86/x
  3. Step 3: Cross multiply
    17,963.15x = 26,932.99 × 8,602.86
  4. Step 4: Simplify right side
    17,963.15x = 231,700,837.97
  5. Step 5: Solve for x
    x = 231,700,837.97/17,963.15
  6. Step 6: Final answer
    x = 12,898.67

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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.