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Finding the Fourth Proportional to 33,458.65, 50,172.08 and 19,422.99

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Solution

The fourth proportional to 33,458.65, 50,172.08 and 19,422.99 is: 29,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,458.65 : 50,172.08 = 19,422.99 : x
  2. Step 2: Convert to fraction form
    33,458.65/50,172.08 = 19,422.99/x
  3. Step 3: Cross multiply
    33,458.65x = 50,172.08 × 19,422.99
  4. Step 4: Simplify right side
    33,458.65x = 974,491,808.12
  5. Step 5: Solve for x
    x = 974,491,808.12/33,458.65
  6. Step 6: Final answer
    x = 29,125.26

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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.