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Finding the Fourth Proportional to 38,793.46, 58,219.07 and 28,821.42

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Solution

The fourth proportional to 38,793.46, 58,219.07 and 28,821.42 is: 43,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,793.46 : 58,219.07 = 28,821.42 : x
  2. Step 2: Convert to fraction form
    38,793.46/58,219.07 = 28,821.42/x
  3. Step 3: Cross multiply
    38,793.46x = 58,219.07 × 28,821.42
  4. Step 4: Simplify right side
    38,793.46x = 1,677,956,341.97
  5. Step 5: Solve for x
    x = 1,677,956,341.97/38,793.46
  6. Step 6: Final answer
    x = 43,253.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.