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Finding the Fourth Proportional to 17,718.19, 26,580.94 and 7,329.94

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Solution

The fourth proportional to 17,718.19, 26,580.94 and 7,329.94 is: 10,996.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718.19 : 26,580.94 = 7,329.94 : x
  2. Step 2: Convert to fraction form
    17,718.19/26,580.94 = 7,329.94/x
  3. Step 3: Cross multiply
    17,718.19x = 26,580.94 × 7,329.94
  4. Step 4: Simplify right side
    17,718.19x = 194,836,610.57
  5. Step 5: Solve for x
    x = 194,836,610.57/17,718.19
  6. Step 6: Final answer
    x = 10,996.42

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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.