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Finding the Fourth Proportional to 17,149.34, 25,725.02 and 6,619.42

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Solution

The fourth proportional to 17,149.34, 25,725.02 and 6,619.42 is: 9,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,149.34 : 25,725.02 = 6,619.42 : x
  2. Step 2: Convert to fraction form
    17,149.34/25,725.02 = 6,619.42/x
  3. Step 3: Cross multiply
    17,149.34x = 25,725.02 × 6,619.42
  4. Step 4: Simplify right side
    17,149.34x = 170,284,710.95
  5. Step 5: Solve for x
    x = 170,284,710.95/17,149.34
  6. Step 6: Final answer
    x = 9,929.52

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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.