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Finding the Fourth Proportional to 13,884.80, 20,927.15 and 11,960.24

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Solution

The fourth proportional to 13,884.80, 20,927.15 and 11,960.24 is: 18,026.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.80 : 20,927.15 = 11,960.24 : x
  2. Step 2: Convert to fraction form
    13,884.80/20,927.15 = 11,960.24/x
  3. Step 3: Cross multiply
    13,884.80x = 20,927.15 × 11,960.24
  4. Step 4: Simplify right side
    13,884.80x = 250,293,736.52
  5. Step 5: Solve for x
    x = 250,293,736.52/13,884.80
  6. Step 6: Final answer
    x = 18,026.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.