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Finding the Fourth Proportional to 4,372.80, 6,559.20 and 4,251.30

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Solution

The fourth proportional to 4,372.80, 6,559.20 and 4,251.30 is: 6,376.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,372.80 : 6,559.20 = 4,251.30 : x
  2. Step 2: Convert to fraction form
    4,372.80/6,559.20 = 4,251.30/x
  3. Step 3: Cross multiply
    4,372.80x = 6,559.20 × 4,251.30
  4. Step 4: Simplify right side
    4,372.80x = 27,885,126.96
  5. Step 5: Solve for x
    x = 27,885,126.96/4,372.80
  6. Step 6: Final answer
    x = 6,376.95

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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.