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Finding the Fourth Proportional to 5,738.32, 8,612.88 and 2,818.72

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Solution

The fourth proportional to 5,738.32, 8,612.88 and 2,818.72 is: 4,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,738.32 : 8,612.88 = 2,818.72 : x
  2. Step 2: Convert to fraction form
    5,738.32/8,612.88 = 2,818.72/x
  3. Step 3: Cross multiply
    5,738.32x = 8,612.88 × 2,818.72
  4. Step 4: Simplify right side
    5,738.32x = 24,277,239.96
  5. Step 5: Solve for x
    x = 24,277,239.96/5,738.32
  6. Step 6: Final answer
    x = 4,230.73

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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.