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Finding the Fourth Proportional to 69,915.57, 104,875.17 and 17,324.29

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Solution

The fourth proportional to 69,915.57, 104,875.17 and 17,324.29 is: 25,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,915.57 : 104,875.17 = 17,324.29 : x
  2. Step 2: Convert to fraction form
    69,915.57/104,875.17 = 17,324.29/x
  3. Step 3: Cross multiply
    69,915.57x = 104,875.17 × 17,324.29
  4. Step 4: Simplify right side
    69,915.57x = 1,816,887,858.88
  5. Step 5: Solve for x
    x = 1,816,887,858.88/69,915.57
  6. Step 6: Final answer
    x = 25,986.88

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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.