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Finding the Fourth Proportional to 43,235.78, 64,736.42 and 22,415.54

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Solution

The fourth proportional to 43,235.78, 64,736.42 and 22,415.54 is: 33,562.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,235.78 : 64,736.42 = 22,415.54 : x
  2. Step 2: Convert to fraction form
    43,235.78/64,736.42 = 22,415.54/x
  3. Step 3: Cross multiply
    43,235.78x = 64,736.42 × 22,415.54
  4. Step 4: Simplify right side
    43,235.78x = 1,451,101,376.21
  5. Step 5: Solve for x
    x = 1,451,101,376.21/43,235.78
  6. Step 6: Final answer
    x = 33,562.52

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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.