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Finding the Fourth Proportional to 50,956.80, 70,324.83 and 28,300.20

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Solution

The fourth proportional to 50,956.80, 70,324.83 and 28,300.20 is: 39,056.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,956.80 : 70,324.83 = 28,300.20 : x
  2. Step 2: Convert to fraction form
    50,956.80/70,324.83 = 28,300.20/x
  3. Step 3: Cross multiply
    50,956.80x = 70,324.83 × 28,300.20
  4. Step 4: Simplify right side
    50,956.80x = 1,990,206,753.97
  5. Step 5: Solve for x
    x = 1,990,206,753.97/50,956.80
  6. Step 6: Final answer
    x = 39,056.75

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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.