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Finding the Fourth Proportional to 9,480.80, 14,221.17 and 2,555.30

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Solution

The fourth proportional to 9,480.80, 14,221.17 and 2,555.30 is: 3,832.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,480.80 : 14,221.17 = 2,555.30 : x
  2. Step 2: Convert to fraction form
    9,480.80/14,221.17 = 2,555.30/x
  3. Step 3: Cross multiply
    9,480.80x = 14,221.17 × 2,555.30
  4. Step 4: Simplify right side
    9,480.80x = 36,339,355.70
  5. Step 5: Solve for x
    x = 36,339,355.70/9,480.80
  6. Step 6: Final answer
    x = 3,832.94

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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.