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Finding the Fourth Proportional to 16,805.19, 25,192.19 and 7,440.21

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Solution

The fourth proportional to 16,805.19, 25,192.19 and 7,440.21 is: 11,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.19 : 25,192.19 = 7,440.21 : x
  2. Step 2: Convert to fraction form
    16,805.19/25,192.19 = 7,440.21/x
  3. Step 3: Cross multiply
    16,805.19x = 25,192.19 × 7,440.21
  4. Step 4: Simplify right side
    16,805.19x = 187,435,183.96
  5. Step 5: Solve for x
    x = 187,435,183.96/16,805.19
  6. Step 6: Final answer
    x = 11,153.41

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Double scale
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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.