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Finding the Fourth Proportional to 12,850.88, 17,721.60 and 10,324.92

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Solution

The fourth proportional to 12,850.88, 17,721.60 and 10,324.92 is: 14,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.88 : 17,721.60 = 10,324.92 : x
  2. Step 2: Convert to fraction form
    12,850.88/17,721.60 = 10,324.92/x
  3. Step 3: Cross multiply
    12,850.88x = 17,721.60 × 10,324.92
  4. Step 4: Simplify right side
    12,850.88x = 182,974,102.27
  5. Step 5: Solve for x
    x = 182,974,102.27/12,850.88
  6. Step 6: Final answer
    x = 14,238.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.