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Finding the Fourth Proportional to 11,861.42, 17,795.22 and 6,310.20

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Solution

The fourth proportional to 11,861.42, 17,795.22 and 6,310.20 is: 9,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.42 : 17,795.22 = 6,310.20 : x
  2. Step 2: Convert to fraction form
    11,861.42/17,795.22 = 6,310.20/x
  3. Step 3: Cross multiply
    11,861.42x = 17,795.22 × 6,310.20
  4. Step 4: Simplify right side
    11,861.42x = 112,291,365.69
  5. Step 5: Solve for x
    x = 112,291,365.69/11,861.42
  6. Step 6: Final answer
    x = 9,466.94

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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.