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Finding the Fourth Proportional to 50,348.72, 69,479.75 and 27,687.69

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Solution

The fourth proportional to 50,348.72, 69,479.75 and 27,687.69 is: 38,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,348.72 : 69,479.75 = 27,687.69 : x
  2. Step 2: Convert to fraction form
    50,348.72/69,479.75 = 27,687.69/x
  3. Step 3: Cross multiply
    50,348.72x = 69,479.75 × 27,687.69
  4. Step 4: Simplify right side
    50,348.72x = 1,923,733,640.84
  5. Step 5: Solve for x
    x = 1,923,733,640.84/50,348.72
  6. Step 6: Final answer
    x = 38,208.20

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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.