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Finding the Fourth Proportional to 4,956.20, 7,426.20 and 4,227.20

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Solution

The fourth proportional to 4,956.20, 7,426.20 and 4,227.20 is: 6,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,956.20 : 7,426.20 = 4,227.20 : x
  2. Step 2: Convert to fraction form
    4,956.20/7,426.20 = 4,227.20/x
  3. Step 3: Cross multiply
    4,956.20x = 7,426.20 × 4,227.20
  4. Step 4: Simplify right side
    4,956.20x = 31,392,032.64
  5. Step 5: Solve for x
    x = 31,392,032.64/4,956.20
  6. Step 6: Final answer
    x = 6,333.89

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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.