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Finding the Fourth Proportional to 11,953.91, 17,930.93 and 3,633.99

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Solution

The fourth proportional to 11,953.91, 17,930.93 and 3,633.99 is: 5,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.91 : 17,930.93 = 3,633.99 : x
  2. Step 2: Convert to fraction form
    11,953.91/17,930.93 = 3,633.99/x
  3. Step 3: Cross multiply
    11,953.91x = 17,930.93 × 3,633.99
  4. Step 4: Simplify right side
    11,953.91x = 65,160,802.14
  5. Step 5: Solve for x
    x = 65,160,802.14/11,953.91
  6. Step 6: Final answer
    x = 5,451.01

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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.