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Finding the Fourth Proportional to 4,886.76, 7,330.02 and 4,226.64

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Solution

The fourth proportional to 4,886.76, 7,330.02 and 4,226.64 is: 6,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.76 : 7,330.02 = 4,226.64 : x
  2. Step 2: Convert to fraction form
    4,886.76/7,330.02 = 4,226.64/x
  3. Step 3: Cross multiply
    4,886.76x = 7,330.02 × 4,226.64
  4. Step 4: Simplify right side
    4,886.76x = 30,981,355.73
  5. Step 5: Solve for x
    x = 30,981,355.73/4,886.76
  6. Step 6: Final answer
    x = 6,339.86

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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.