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Finding the Fourth Proportional to 8,292.99, 12,439.50 and 2,453.70

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Solution

The fourth proportional to 8,292.99, 12,439.50 and 2,453.70 is: 3,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,292.99 : 12,439.50 = 2,453.70 : x
  2. Step 2: Convert to fraction form
    8,292.99/12,439.50 = 2,453.70/x
  3. Step 3: Cross multiply
    8,292.99x = 12,439.50 × 2,453.70
  4. Step 4: Simplify right side
    8,292.99x = 30,522,801.15
  5. Step 5: Solve for x
    x = 30,522,801.15/8,292.99
  6. Step 6: Final answer
    x = 3,680.55

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Double scale
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Similar ratio
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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.