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Finding the Fourth Proportional to 48,700.20, 72,992.70 and 25,314.60

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Solution

The fourth proportional to 48,700.20, 72,992.70 and 25,314.60 is: 37,941.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,700.20 : 72,992.70 = 25,314.60 : x
  2. Step 2: Convert to fraction form
    48,700.20/72,992.70 = 25,314.60/x
  3. Step 3: Cross multiply
    48,700.20x = 72,992.70 × 25,314.60
  4. Step 4: Simplify right side
    48,700.20x = 1,847,781,003.42
  5. Step 5: Solve for x
    x = 1,847,781,003.42/48,700.20
  6. Step 6: Final answer
    x = 37,941.96

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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.