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Finding the Fourth Proportional to 19,288.22, 28,935.05 and 6,136.11

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Solution

The fourth proportional to 19,288.22, 28,935.05 and 6,136.11 is: 9,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.22 : 28,935.05 = 6,136.11 : x
  2. Step 2: Convert to fraction form
    19,288.22/28,935.05 = 6,136.11/x
  3. Step 3: Cross multiply
    19,288.22x = 28,935.05 × 6,136.11
  4. Step 4: Simplify right side
    19,288.22x = 177,548,618.97
  5. Step 5: Solve for x
    x = 177,548,618.97/19,288.22
  6. Step 6: Final answer
    x = 9,205.03

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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.