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Finding the Fourth Proportional to 43,903.80, 65,877.30 and 33,370.20

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Solution

The fourth proportional to 43,903.80, 65,877.30 and 33,370.20 is: 50,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,903.80 : 65,877.30 = 33,370.20 : x
  2. Step 2: Convert to fraction form
    43,903.80/65,877.30 = 33,370.20/x
  3. Step 3: Cross multiply
    43,903.80x = 65,877.30 × 33,370.20
  4. Step 4: Simplify right side
    43,903.80x = 2,198,338,676.46
  5. Step 5: Solve for x
    x = 2,198,338,676.46/43,903.80
  6. Step 6: Final answer
    x = 50,071.72

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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.