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Finding the Fourth Proportional to 9,455.70, 14,183.55 and 9,390.90

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Solution

The fourth proportional to 9,455.70, 14,183.55 and 9,390.90 is: 14,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,455.70 : 14,183.55 = 9,390.90 : x
  2. Step 2: Convert to fraction form
    9,455.70/14,183.55 = 9,390.90/x
  3. Step 3: Cross multiply
    9,455.70x = 14,183.55 × 9,390.90
  4. Step 4: Simplify right side
    9,455.70x = 133,196,299.70
  5. Step 5: Solve for x
    x = 133,196,299.70/9,455.70
  6. Step 6: Final answer
    x = 14,086.35

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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.