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Finding the Fourth Proportional to 17,143.88, 25,673.88 and 15,481.76

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Solution

The fourth proportional to 17,143.88, 25,673.88 and 15,481.76 is: 23,184.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,143.88 : 25,673.88 = 15,481.76 : x
  2. Step 2: Convert to fraction form
    17,143.88/25,673.88 = 15,481.76/x
  3. Step 3: Cross multiply
    17,143.88x = 25,673.88 × 15,481.76
  4. Step 4: Simplify right side
    17,143.88x = 397,476,848.43
  5. Step 5: Solve for x
    x = 397,476,848.43/17,143.88
  6. Step 6: Final answer
    x = 23,184.77

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1.5x scale

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.