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Finding the Fourth Proportional to 7,613.82, 11,421.12 and 4,333.32

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Solution

The fourth proportional to 7,613.82, 11,421.12 and 4,333.32 is: 6,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.82 : 11,421.12 = 4,333.32 : x
  2. Step 2: Convert to fraction form
    7,613.82/11,421.12 = 4,333.32/x
  3. Step 3: Cross multiply
    7,613.82x = 11,421.12 × 4,333.32
  4. Step 4: Simplify right side
    7,613.82x = 49,491,367.72
  5. Step 5: Solve for x
    x = 49,491,367.72/7,613.82
  6. Step 6: Final answer
    x = 6,500.20

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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.