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Finding the Fourth Proportional to 40,538.70, 60,793.65 and 18,362.70

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Solution

The fourth proportional to 40,538.70, 60,793.65 and 18,362.70 is: 27,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,538.70 : 60,793.65 = 18,362.70 : x
  2. Step 2: Convert to fraction form
    40,538.70/60,793.65 = 18,362.70/x
  3. Step 3: Cross multiply
    40,538.70x = 60,793.65 × 18,362.70
  4. Step 4: Simplify right side
    40,538.70x = 1,116,335,556.86
  5. Step 5: Solve for x
    x = 1,116,335,556.86/40,538.70
  6. Step 6: Final answer
    x = 27,537.53

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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.