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Finding the Fourth Proportional to 50,685.54, 69,946.20 and 28,329.54

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Solution

The fourth proportional to 50,685.54, 69,946.20 and 28,329.54 is: 39,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,685.54 : 69,946.20 = 28,329.54 : x
  2. Step 2: Convert to fraction form
    50,685.54/69,946.20 = 28,329.54/x
  3. Step 3: Cross multiply
    50,685.54x = 69,946.20 × 28,329.54
  4. Step 4: Simplify right side
    50,685.54x = 1,981,543,670.75
  5. Step 5: Solve for x
    x = 1,981,543,670.75/50,685.54
  6. Step 6: Final answer
    x = 39,094.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.