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Finding the Fourth Proportional to 13,752.44, 20,617.74 and 5,955.80

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Solution

The fourth proportional to 13,752.44, 20,617.74 and 5,955.80 is: 8,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.44 : 20,617.74 = 5,955.80 : x
  2. Step 2: Convert to fraction form
    13,752.44/20,617.74 = 5,955.80/x
  3. Step 3: Cross multiply
    13,752.44x = 20,617.74 × 5,955.80
  4. Step 4: Simplify right side
    13,752.44x = 122,795,135.89
  5. Step 5: Solve for x
    x = 122,795,135.89/13,752.44
  6. Step 6: Final answer
    x = 8,928.97

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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.