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Finding the Fourth Proportional to 86,558.96, 129,760.08 and 33,954.32

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Solution

The fourth proportional to 86,558.96, 129,760.08 and 33,954.32 is: 50,900.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,558.96 : 129,760.08 = 33,954.32 : x
  2. Step 2: Convert to fraction form
    86,558.96/129,760.08 = 33,954.32/x
  3. Step 3: Cross multiply
    86,558.96x = 129,760.08 × 33,954.32
  4. Step 4: Simplify right side
    86,558.96x = 4,405,915,476.62
  5. Step 5: Solve for x
    x = 4,405,915,476.62/86,558.96
  6. Step 6: Final answer
    x = 50,900.74

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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.