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Finding the Fourth Proportional to 14,486.88, 19,993.86 and 8,522.04

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Solution

The fourth proportional to 14,486.88, 19,993.86 and 8,522.04 is: 11,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,486.88 : 19,993.86 = 8,522.04 : x
  2. Step 2: Convert to fraction form
    14,486.88/19,993.86 = 8,522.04/x
  3. Step 3: Cross multiply
    14,486.88x = 19,993.86 × 8,522.04
  4. Step 4: Simplify right side
    14,486.88x = 170,388,474.67
  5. Step 5: Solve for x
    x = 170,388,474.67/14,486.88
  6. Step 6: Final answer
    x = 11,761.57

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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.