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Finding the Fourth Proportional to 54,375.72, 81,553.86 and 14,927.64

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Solution

The fourth proportional to 54,375.72, 81,553.86 and 14,927.64 is: 22,388.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,375.72 : 81,553.86 = 14,927.64 : x
  2. Step 2: Convert to fraction form
    54,375.72/81,553.86 = 14,927.64/x
  3. Step 3: Cross multiply
    54,375.72x = 81,553.86 × 14,927.64
  4. Step 4: Simplify right side
    54,375.72x = 1,217,406,662.69
  5. Step 5: Solve for x
    x = 1,217,406,662.69/54,375.72
  6. Step 6: Final answer
    x = 22,388.79

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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.