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Finding the Fourth Proportional to 7,286.70, 10,930.05 and 5,537.10

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Solution

The fourth proportional to 7,286.70, 10,930.05 and 5,537.10 is: 8,305.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.70 : 10,930.05 = 5,537.10 : x
  2. Step 2: Convert to fraction form
    7,286.70/10,930.05 = 5,537.10/x
  3. Step 3: Cross multiply
    7,286.70x = 10,930.05 × 5,537.10
  4. Step 4: Simplify right side
    7,286.70x = 60,520,779.86
  5. Step 5: Solve for x
    x = 60,520,779.86/7,286.70
  6. Step 6: Final answer
    x = 8,305.65

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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.