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Finding the Fourth Proportional to 17,279.65, 25,898.10 and 8,954.86

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Solution

The fourth proportional to 17,279.65, 25,898.10 and 8,954.86 is: 13,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,279.65 : 25,898.10 = 8,954.86 : x
  2. Step 2: Convert to fraction form
    17,279.65/25,898.10 = 8,954.86/x
  3. Step 3: Cross multiply
    17,279.65x = 25,898.10 × 8,954.86
  4. Step 4: Simplify right side
    17,279.65x = 231,913,859.77
  5. Step 5: Solve for x
    x = 231,913,859.77/17,279.65
  6. Step 6: Final answer
    x = 13,421.21

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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.