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Finding the Fourth Proportional to 11,493.80, 15,861.02 and 7,025.04

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Solution

The fourth proportional to 11,493.80, 15,861.02 and 7,025.04 is: 9,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.80 : 15,861.02 = 7,025.04 : x
  2. Step 2: Convert to fraction form
    11,493.80/15,861.02 = 7,025.04/x
  3. Step 3: Cross multiply
    11,493.80x = 15,861.02 × 7,025.04
  4. Step 4: Simplify right side
    11,493.80x = 111,424,299.94
  5. Step 5: Solve for x
    x = 111,424,299.94/11,493.80
  6. Step 6: Final answer
    x = 9,694.30

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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.