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Finding the Fourth Proportional to 57,206.80, 85,810.20 and 33,859.60

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Solution

The fourth proportional to 57,206.80, 85,810.20 and 33,859.60 is: 50,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,206.80 : 85,810.20 = 33,859.60 : x
  2. Step 2: Convert to fraction form
    57,206.80/85,810.20 = 33,859.60/x
  3. Step 3: Cross multiply
    57,206.80x = 85,810.20 × 33,859.60
  4. Step 4: Simplify right side
    57,206.80x = 2,905,499,047.92
  5. Step 5: Solve for x
    x = 2,905,499,047.92/57,206.80
  6. Step 6: Final answer
    x = 50,789.40

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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.