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Finding the Fourth Proportional to 38,505.80, 57,758.70 and 36,201.80

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Solution

The fourth proportional to 38,505.80, 57,758.70 and 36,201.80 is: 54,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,505.80 : 57,758.70 = 36,201.80 : x
  2. Step 2: Convert to fraction form
    38,505.80/57,758.70 = 36,201.80/x
  3. Step 3: Cross multiply
    38,505.80x = 57,758.70 × 36,201.80
  4. Step 4: Simplify right side
    38,505.80x = 2,090,968,905.66
  5. Step 5: Solve for x
    x = 2,090,968,905.66/38,505.80
  6. Step 6: Final answer
    x = 54,302.70

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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.