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Finding the Fourth Proportional to 16,806.15, 25,208.21 and 7,443.42

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Solution

The fourth proportional to 16,806.15, 25,208.21 and 7,443.42 is: 11,164.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,806.15 : 25,208.21 = 7,443.42 : x
  2. Step 2: Convert to fraction form
    16,806.15/25,208.21 = 7,443.42/x
  3. Step 3: Cross multiply
    16,806.15x = 25,208.21 × 7,443.42
  4. Step 4: Simplify right side
    16,806.15x = 187,635,257.26
  5. Step 5: Solve for x
    x = 187,635,257.26/16,806.15
  6. Step 6: Final answer
    x = 11,164.68

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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.