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Finding the Fourth Proportional to 38,434.72, 57,734.02 and 36,187.58

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Solution

The fourth proportional to 38,434.72, 57,734.02 and 36,187.58 is: 54,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.72 : 57,734.02 = 36,187.58 : x
  2. Step 2: Convert to fraction form
    38,434.72/57,734.02 = 36,187.58/x
  3. Step 3: Cross multiply
    38,434.72x = 57,734.02 × 36,187.58
  4. Step 4: Simplify right side
    38,434.72x = 2,089,254,269.27
  5. Step 5: Solve for x
    x = 2,089,254,269.27/38,434.72
  6. Step 6: Final answer
    x = 54,358.52

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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.