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Finding the Fourth Proportional to 13,651.10, 20,472.95 and 5,858.09

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Solution

The fourth proportional to 13,651.10, 20,472.95 and 5,858.09 is: 8,785.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.10 : 20,472.95 = 5,858.09 : x
  2. Step 2: Convert to fraction form
    13,651.10/20,472.95 = 5,858.09/x
  3. Step 3: Cross multiply
    13,651.10x = 20,472.95 × 5,858.09
  4. Step 4: Simplify right side
    13,651.10x = 119,932,295.95
  5. Step 5: Solve for x
    x = 119,932,295.95/13,651.10
  6. Step 6: Final answer
    x = 8,785.54

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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.