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Finding the Fourth Proportional to 50,471.10, 75,621.60 and 39,900.60

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Solution

The fourth proportional to 50,471.10, 75,621.60 and 39,900.60 is: 59,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,471.10 : 75,621.60 = 39,900.60 : x
  2. Step 2: Convert to fraction form
    50,471.10/75,621.60 = 39,900.60/x
  3. Step 3: Cross multiply
    50,471.10x = 75,621.60 × 39,900.60
  4. Step 4: Simplify right side
    50,471.10x = 3,017,347,212.96
  5. Step 5: Solve for x
    x = 3,017,347,212.96/50,471.10
  6. Step 6: Final answer
    x = 59,783.66

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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.