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Finding the Fourth Proportional to 9,280.62, 13,920.93 and 2,260.62

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Solution

The fourth proportional to 9,280.62, 13,920.93 and 2,260.62 is: 3,390.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,280.62 : 13,920.93 = 2,260.62 : x
  2. Step 2: Convert to fraction form
    9,280.62/13,920.93 = 2,260.62/x
  3. Step 3: Cross multiply
    9,280.62x = 13,920.93 × 2,260.62
  4. Step 4: Simplify right side
    9,280.62x = 31,469,932.78
  5. Step 5: Solve for x
    x = 31,469,932.78/9,280.62
  6. Step 6: Final answer
    x = 3,390.93

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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.