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Finding the Fourth Proportional to 54,997.80, 82,497.98 and 13,445.16

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Solution

The fourth proportional to 54,997.80, 82,497.98 and 13,445.16 is: 20,168.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,997.80 : 82,497.98 = 13,445.16 : x
  2. Step 2: Convert to fraction form
    54,997.80/82,497.98 = 13,445.16/x
  3. Step 3: Cross multiply
    54,997.80x = 82,497.98 × 13,445.16
  4. Step 4: Simplify right side
    54,997.80x = 1,109,198,540.78
  5. Step 5: Solve for x
    x = 1,109,198,540.78/54,997.80
  6. Step 6: Final answer
    x = 20,168.05

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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.