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Finding the Fourth Proportional to 54,997.60, 82,496.40 and 13,444.60

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Solution

The fourth proportional to 54,997.60, 82,496.40 and 13,444.60 is: 20,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,997.60 : 82,496.40 = 13,444.60 : x
  2. Step 2: Convert to fraction form
    54,997.60/82,496.40 = 13,444.60/x
  3. Step 3: Cross multiply
    54,997.60x = 82,496.40 × 13,444.60
  4. Step 4: Simplify right side
    54,997.60x = 1,109,131,099.44
  5. Step 5: Solve for x
    x = 1,109,131,099.44/54,997.60
  6. Step 6: Final answer
    x = 20,166.90

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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.