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Finding the Fourth Proportional to 50,778.70, 75,754.64 and 49,473.79

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Solution

The fourth proportional to 50,778.70, 75,754.64 and 49,473.79 is: 73,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,778.70 : 75,754.64 = 49,473.79 : x
  2. Step 2: Convert to fraction form
    50,778.70/75,754.64 = 49,473.79/x
  3. Step 3: Cross multiply
    50,778.70x = 75,754.64 × 49,473.79
  4. Step 4: Simplify right side
    50,778.70x = 3,747,869,085.18
  5. Step 5: Solve for x
    x = 3,747,869,085.18/50,778.70
  6. Step 6: Final answer
    x = 73,807.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.