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Finding the Fourth Proportional to 55,910.70, 83,870.10 and 33,676.20

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Solution

The fourth proportional to 55,910.70, 83,870.10 and 33,676.20 is: 50,516.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,910.70 : 83,870.10 = 33,676.20 : x
  2. Step 2: Convert to fraction form
    55,910.70/83,870.10 = 33,676.20/x
  3. Step 3: Cross multiply
    55,910.70x = 83,870.10 × 33,676.20
  4. Step 4: Simplify right side
    55,910.70x = 2,824,426,261.62
  5. Step 5: Solve for x
    x = 2,824,426,261.62/55,910.70
  6. Step 6: Final answer
    x = 50,516.74

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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.