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Finding the Fourth Proportional to 48,392.75, 72,616.73 and 18,806.73

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Solution

The fourth proportional to 48,392.75, 72,616.73 and 18,806.73 is: 28,220.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,392.75 : 72,616.73 = 18,806.73 : x
  2. Step 2: Convert to fraction form
    48,392.75/72,616.73 = 18,806.73/x
  3. Step 3: Cross multiply
    48,392.75x = 72,616.73 × 18,806.73
  4. Step 4: Simplify right side
    48,392.75x = 1,365,683,140.56
  5. Step 5: Solve for x
    x = 1,365,683,140.56/48,392.75
  6. Step 6: Final answer
    x = 28,220.82

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1.5x scale

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.