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Finding the Fourth Proportional to 89,653.79, 134,490.39 and 33,520.79

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Solution

The fourth proportional to 89,653.79, 134,490.39 and 33,520.79 is: 50,284.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,653.79 : 134,490.39 = 33,520.79 : x
  2. Step 2: Convert to fraction form
    89,653.79/134,490.39 = 33,520.79/x
  3. Step 3: Cross multiply
    89,653.79x = 134,490.39 × 33,520.79
  4. Step 4: Simplify right side
    89,653.79x = 4,508,224,120.21
  5. Step 5: Solve for x
    x = 4,508,224,120.21/89,653.79
  6. Step 6: Final answer
    x = 50,284.81

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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.