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Finding the Fourth Proportional to 14,560.88, 21,839.18 and 7,163.36

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Solution

The fourth proportional to 14,560.88, 21,839.18 and 7,163.36 is: 10,743.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,560.88 : 21,839.18 = 7,163.36 : x
  2. Step 2: Convert to fraction form
    14,560.88/21,839.18 = 7,163.36/x
  3. Step 3: Cross multiply
    14,560.88x = 21,839.18 × 7,163.36
  4. Step 4: Simplify right side
    14,560.88x = 156,441,908.44
  5. Step 5: Solve for x
    x = 156,441,908.44/14,560.88
  6. Step 6: Final answer
    x = 10,743.99

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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.