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Finding the Fourth Proportional to 55,179.60, 82,769.40 and 33,061.20

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Solution

The fourth proportional to 55,179.60, 82,769.40 and 33,061.20 is: 49,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,179.60 : 82,769.40 = 33,061.20 : x
  2. Step 2: Convert to fraction form
    55,179.60/82,769.40 = 33,061.20/x
  3. Step 3: Cross multiply
    55,179.60x = 82,769.40 × 33,061.20
  4. Step 4: Simplify right side
    55,179.60x = 2,736,455,687.28
  5. Step 5: Solve for x
    x = 2,736,455,687.28/55,179.60
  6. Step 6: Final answer
    x = 49,591.80

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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.