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Finding the Fourth Proportional to 17,896.65, 24,689.28 and 11,520.96

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Solution

The fourth proportional to 17,896.65, 24,689.28 and 11,520.96 is: 15,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,896.65 : 24,689.28 = 11,520.96 : x
  2. Step 2: Convert to fraction form
    17,896.65/24,689.28 = 11,520.96/x
  3. Step 3: Cross multiply
    17,896.65x = 24,689.28 × 11,520.96
  4. Step 4: Simplify right side
    17,896.65x = 284,444,026.26
  5. Step 5: Solve for x
    x = 284,444,026.26/17,896.65
  6. Step 6: Final answer
    x = 15,893.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.