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Finding the Fourth Proportional to 53,704.60, 80,477.70 and 38,944.60

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Solution

The fourth proportional to 53,704.60, 80,477.70 and 38,944.60 is: 58,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,704.60 : 80,477.70 = 38,944.60 : x
  2. Step 2: Convert to fraction form
    53,704.60/80,477.70 = 38,944.60/x
  3. Step 3: Cross multiply
    53,704.60x = 80,477.70 × 38,944.60
  4. Step 4: Simplify right side
    53,704.60x = 3,134,171,835.42
  5. Step 5: Solve for x
    x = 3,134,171,835.42/53,704.60
  6. Step 6: Final answer
    x = 58,359.47

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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.