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Finding the Fourth Proportional to 50,923.80, 76,385.70 and 48,007.80

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Solution

The fourth proportional to 50,923.80, 76,385.70 and 48,007.80 is: 72,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,923.80 : 76,385.70 = 48,007.80 : x
  2. Step 2: Convert to fraction form
    50,923.80/76,385.70 = 48,007.80/x
  3. Step 3: Cross multiply
    50,923.80x = 76,385.70 × 48,007.80
  4. Step 4: Simplify right side
    50,923.80x = 3,667,109,408.46
  5. Step 5: Solve for x
    x = 3,667,109,408.46/50,923.80
  6. Step 6: Final answer
    x = 72,011.70

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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.