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Finding the Fourth Proportional to 16,809.65, 25,220.14 and 7,451.99

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Solution

The fourth proportional to 16,809.65, 25,220.14 and 7,451.99 is: 11,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809.65 : 25,220.14 = 7,451.99 : x
  2. Step 2: Convert to fraction form
    16,809.65/25,220.14 = 7,451.99/x
  3. Step 3: Cross multiply
    16,809.65x = 25,220.14 × 7,451.99
  4. Step 4: Simplify right side
    16,809.65x = 187,940,231.08
  5. Step 5: Solve for x
    x = 187,940,231.08/16,809.65
  6. Step 6: Final answer
    x = 11,180.50

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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.