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Finding the Fourth Proportional to 4,668.74, 7,000.83 and 1,380.95

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Solution

The fourth proportional to 4,668.74, 7,000.83 and 1,380.95 is: 2,070.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.74 : 7,000.83 = 1,380.95 : x
  2. Step 2: Convert to fraction form
    4,668.74/7,000.83 = 1,380.95/x
  3. Step 3: Cross multiply
    4,668.74x = 7,000.83 × 1,380.95
  4. Step 4: Simplify right side
    4,668.74x = 9,667,787.44
  5. Step 5: Solve for x
    x = 9,667,787.44/4,668.74
  6. Step 6: Final answer
    x = 2,070.75

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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.