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Finding the Fourth Proportional to 86,704.49, 129,977.91 and 33,362.45

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Solution

The fourth proportional to 86,704.49, 129,977.91 and 33,362.45 is: 50,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,704.49 : 129,977.91 = 33,362.45 : x
  2. Step 2: Convert to fraction form
    86,704.49/129,977.91 = 33,362.45/x
  3. Step 3: Cross multiply
    86,704.49x = 129,977.91 × 33,362.45
  4. Step 4: Simplify right side
    86,704.49x = 4,336,380,873.59
  5. Step 5: Solve for x
    x = 4,336,380,873.59/86,704.49
  6. Step 6: Final answer
    x = 50,013.34

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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.