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Finding the Fourth Proportional to 48,608.20, 72,941.10 and 32,015.80

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Solution

The fourth proportional to 48,608.20, 72,941.10 and 32,015.80 is: 48,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,608.20 : 72,941.10 = 32,015.80 : x
  2. Step 2: Convert to fraction form
    48,608.20/72,941.10 = 32,015.80/x
  3. Step 3: Cross multiply
    48,608.20x = 72,941.10 × 32,015.80
  4. Step 4: Simplify right side
    48,608.20x = 2,335,267,669.38
  5. Step 5: Solve for x
    x = 2,335,267,669.38/48,608.20
  6. Step 6: Final answer
    x = 48,042.67

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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.