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Finding the Fourth Proportional to 86,033.84, 129,050.76 and 33,455.63

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Solution

The fourth proportional to 86,033.84, 129,050.76 and 33,455.63 is: 50,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,033.84 : 129,050.76 = 33,455.63 : x
  2. Step 2: Convert to fraction form
    86,033.84/129,050.76 = 33,455.63/x
  3. Step 3: Cross multiply
    86,033.84x = 129,050.76 × 33,455.63
  4. Step 4: Simplify right side
    86,033.84x = 4,317,474,238.79
  5. Step 5: Solve for x
    x = 4,317,474,238.79/86,033.84
  6. Step 6: Final answer
    x = 50,183.44

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Double scale
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Similar ratio
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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.