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Finding the Fourth Proportional to 86,522.36, 129,783.54 and 33,956.60

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Solution

The fourth proportional to 86,522.36, 129,783.54 and 33,956.60 is: 50,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,522.36 : 129,783.54 = 33,956.60 : x
  2. Step 2: Convert to fraction form
    86,522.36/129,783.54 = 33,956.60/x
  3. Step 3: Cross multiply
    86,522.36x = 129,783.54 × 33,956.60
  4. Step 4: Simplify right side
    86,522.36x = 4,407,007,754.36
  5. Step 5: Solve for x
    x = 4,407,007,754.36/86,522.36
  6. Step 6: Final answer
    x = 50,934.90

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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.