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Finding the Fourth Proportional to 43,057.36, 64,336.70 and 33,007.12

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Solution

The fourth proportional to 43,057.36, 64,336.70 and 33,007.12 is: 49,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,057.36 : 64,336.70 = 33,007.12 : x
  2. Step 2: Convert to fraction form
    43,057.36/64,336.70 = 33,007.12/x
  3. Step 3: Cross multiply
    43,057.36x = 64,336.70 × 33,007.12
  4. Step 4: Simplify right side
    43,057.36x = 2,123,569,177.30
  5. Step 5: Solve for x
    x = 2,123,569,177.30/43,057.36
  6. Step 6: Final answer
    x = 49,319.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.