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Finding the Fourth Proportional to 50,079.87, 69,125.13 and 28,874.07

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Solution

The fourth proportional to 50,079.87, 69,125.13 and 28,874.07 is: 39,854.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,079.87 : 69,125.13 = 28,874.07 : x
  2. Step 2: Convert to fraction form
    50,079.87/69,125.13 = 28,874.07/x
  3. Step 3: Cross multiply
    50,079.87x = 69,125.13 × 28,874.07
  4. Step 4: Simplify right side
    50,079.87x = 1,995,923,842.38
  5. Step 5: Solve for x
    x = 1,995,923,842.38/50,079.87
  6. Step 6: Final answer
    x = 39,854.81

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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.