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Finding the Fourth Proportional to 86,558.28, 129,759.04 and 33,953.64

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Solution

The fourth proportional to 86,558.28, 129,759.04 and 33,953.64 is: 50,899.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,558.28 : 129,759.04 = 33,953.64 : x
  2. Step 2: Convert to fraction form
    86,558.28/129,759.04 = 33,953.64/x
  3. Step 3: Cross multiply
    86,558.28x = 129,759.04 × 33,953.64
  4. Step 4: Simplify right side
    86,558.28x = 4,405,791,730.91
  5. Step 5: Solve for x
    x = 4,405,791,730.91/86,558.28
  6. Step 6: Final answer
    x = 50,899.71

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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.