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Finding the Fourth Proportional to 86,443.92, 129,591.92 and 33,174.12

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Solution

The fourth proportional to 86,443.92, 129,591.92 and 33,174.12 is: 49,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,443.92 : 129,591.92 = 33,174.12 : x
  2. Step 2: Convert to fraction form
    86,443.92/129,591.92 = 33,174.12/x
  3. Step 3: Cross multiply
    86,443.92x = 129,591.92 × 33,174.12
  4. Step 4: Simplify right side
    86,443.92x = 4,299,097,905.11
  5. Step 5: Solve for x
    x = 4,299,097,905.11/86,443.92
  6. Step 6: Final answer
    x = 49,732.80

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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.