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Finding the Fourth Proportional to 38,399.87, 52,980.78 and 24,990.86

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Solution

The fourth proportional to 38,399.87, 52,980.78 and 24,990.86 is: 34,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.87 : 52,980.78 = 24,990.86 : x
  2. Step 2: Convert to fraction form
    38,399.87/52,980.78 = 24,990.86/x
  3. Step 3: Cross multiply
    38,399.87x = 52,980.78 × 24,990.86
  4. Step 4: Simplify right side
    38,399.87x = 1,324,035,481.84
  5. Step 5: Solve for x
    x = 1,324,035,481.84/38,399.87
  6. Step 6: Final answer
    x = 34,480.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.