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Finding the Fourth Proportional to 11,611.54, 16,023.85 and 6,306.31

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Solution

The fourth proportional to 11,611.54, 16,023.85 and 6,306.31 is: 8,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,611.54 : 16,023.85 = 6,306.31 : x
  2. Step 2: Convert to fraction form
    11,611.54/16,023.85 = 6,306.31/x
  3. Step 3: Cross multiply
    11,611.54x = 16,023.85 × 6,306.31
  4. Step 4: Simplify right side
    11,611.54x = 101,051,365.49
  5. Step 5: Solve for x
    x = 101,051,365.49/11,611.54
  6. Step 6: Final answer
    x = 8,702.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.