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Finding the Fourth Proportional to 54,956.70, 82,398.60 and 25,359.30

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Solution

The fourth proportional to 54,956.70, 82,398.60 and 25,359.30 is: 38,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,956.70 : 82,398.60 = 25,359.30 : x
  2. Step 2: Convert to fraction form
    54,956.70/82,398.60 = 25,359.30/x
  3. Step 3: Cross multiply
    54,956.70x = 82,398.60 × 25,359.30
  4. Step 4: Simplify right side
    54,956.70x = 2,089,570,816.98
  5. Step 5: Solve for x
    x = 2,089,570,816.98/54,956.70
  6. Step 6: Final answer
    x = 38,022.13

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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.