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Finding the Fourth Proportional to 86,083.36, 129,133 and 33,496.80

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Solution

The fourth proportional to 86,083.36, 129,133 and 33,496.80 is: 50,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,083.36 : 129,133 = 33,496.80 : x
  2. Step 2: Convert to fraction form
    86,083.36/129,133 = 33,496.80/x
  3. Step 3: Cross multiply
    86,083.36x = 129,133 × 33,496.80
  4. Step 4: Simplify right side
    86,083.36x = 4,325,542,274.40
  5. Step 5: Solve for x
    x = 4,325,542,274.40/86,083.36
  6. Step 6: Final answer
    x = 50,248.30

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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.