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Finding the Fourth Proportional to 14,039.25, 21,060.09 and 3,651

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Solution

The fourth proportional to 14,039.25, 21,060.09 and 3,651 is: 5,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.25 : 21,060.09 = 3,651 : x
  2. Step 2: Convert to fraction form
    14,039.25/21,060.09 = 3,651/x
  3. Step 3: Cross multiply
    14,039.25x = 21,060.09 × 3,651
  4. Step 4: Simplify right side
    14,039.25x = 76,890,388.59
  5. Step 5: Solve for x
    x = 76,890,388.59/14,039.25
  6. Step 6: Final answer
    x = 5,476.82

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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.