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Finding the Fourth Proportional to 7,627.70, 10,521.86 and 4,793.96

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Solution

The fourth proportional to 7,627.70, 10,521.86 and 4,793.96 is: 6,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,627.70 : 10,521.86 = 4,793.96 : x
  2. Step 2: Convert to fraction form
    7,627.70/10,521.86 = 4,793.96/x
  3. Step 3: Cross multiply
    7,627.70x = 10,521.86 × 4,793.96
  4. Step 4: Simplify right side
    7,627.70x = 50,441,375.97
  5. Step 5: Solve for x
    x = 50,441,375.97/7,627.70
  6. Step 6: Final answer
    x = 6,612.92

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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.