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Finding the Fourth Proportional to 50,664.50, 75,996.76 and 13,728.50

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Solution

The fourth proportional to 50,664.50, 75,996.76 and 13,728.50 is: 20,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,664.50 : 75,996.76 = 13,728.50 : x
  2. Step 2: Convert to fraction form
    50,664.50/75,996.76 = 13,728.50/x
  3. Step 3: Cross multiply
    50,664.50x = 75,996.76 × 13,728.50
  4. Step 4: Simplify right side
    50,664.50x = 1,043,321,519.66
  5. Step 5: Solve for x
    x = 1,043,321,519.66/50,664.50
  6. Step 6: Final answer
    x = 20,592.75

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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.