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Finding the Fourth Proportional to 10,995.84, 16,497.54 and 3,205.80

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Solution

The fourth proportional to 10,995.84, 16,497.54 and 3,205.80 is: 4,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.84 : 16,497.54 = 3,205.80 : x
  2. Step 2: Convert to fraction form
    10,995.84/16,497.54 = 3,205.80/x
  3. Step 3: Cross multiply
    10,995.84x = 16,497.54 × 3,205.80
  4. Step 4: Simplify right side
    10,995.84x = 52,887,813.73
  5. Step 5: Solve for x
    x = 52,887,813.73/10,995.84
  6. Step 6: Final answer
    x = 4,809.80

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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.