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Finding the Fourth Proportional to 22,940.26, 34,390.88 and 10,455.88

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Solution

The fourth proportional to 22,940.26, 34,390.88 and 10,455.88 is: 15,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,940.26 : 34,390.88 = 10,455.88 : x
  2. Step 2: Convert to fraction form
    22,940.26/34,390.88 = 10,455.88/x
  3. Step 3: Cross multiply
    22,940.26x = 34,390.88 × 10,455.88
  4. Step 4: Simplify right side
    22,940.26x = 359,586,914.37
  5. Step 5: Solve for x
    x = 359,586,914.37/22,940.26
  6. Step 6: Final answer
    x = 15,674.93

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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.