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Finding the Fourth Proportional to 14,940.50, 20,623.53 and 11,745.46

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Solution

The fourth proportional to 14,940.50, 20,623.53 and 11,745.46 is: 16,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.50 : 20,623.53 = 11,745.46 : x
  2. Step 2: Convert to fraction form
    14,940.50/20,623.53 = 11,745.46/x
  3. Step 3: Cross multiply
    14,940.50x = 20,623.53 × 11,745.46
  4. Step 4: Simplify right side
    14,940.50x = 242,232,846.67
  5. Step 5: Solve for x
    x = 242,232,846.67/14,940.50
  6. Step 6: Final answer
    x = 16,213.17

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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.