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Finding the Fourth Proportional to 54,609.86, 75,361.74 and 30,736.88

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Solution

The fourth proportional to 54,609.86, 75,361.74 and 30,736.88 is: 42,416.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,609.86 : 75,361.74 = 30,736.88 : x
  2. Step 2: Convert to fraction form
    54,609.86/75,361.74 = 30,736.88/x
  3. Step 3: Cross multiply
    54,609.86x = 75,361.74 × 30,736.88
  4. Step 4: Simplify right side
    54,609.86x = 2,316,384,758.97
  5. Step 5: Solve for x
    x = 2,316,384,758.97/54,609.86
  6. Step 6: Final answer
    x = 42,416.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.