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Finding the Fourth Proportional to 17,862.34, 26,787.26 and 7,329.38

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Solution

The fourth proportional to 17,862.34, 26,787.26 and 7,329.38 is: 10,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,862.34 : 26,787.26 = 7,329.38 : x
  2. Step 2: Convert to fraction form
    17,862.34/26,787.26 = 7,329.38/x
  3. Step 3: Cross multiply
    17,862.34x = 26,787.26 × 7,329.38
  4. Step 4: Simplify right side
    17,862.34x = 196,334,007.70
  5. Step 5: Solve for x
    x = 196,334,007.70/17,862.34
  6. Step 6: Final answer
    x = 10,991.51

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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.