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Finding the Fourth Proportional to 22,795.78, 34,167.75 and 9,639.94

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Solution

The fourth proportional to 22,795.78, 34,167.75 and 9,639.94 is: 14,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,795.78 : 34,167.75 = 9,639.94 : x
  2. Step 2: Convert to fraction form
    22,795.78/34,167.75 = 9,639.94/x
  3. Step 3: Cross multiply
    22,795.78x = 34,167.75 × 9,639.94
  4. Step 4: Simplify right side
    22,795.78x = 329,375,059.94
  5. Step 5: Solve for x
    x = 329,375,059.94/22,795.78
  6. Step 6: Final answer
    x = 14,448.95

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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.