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Finding the Fourth Proportional to 10,995.75, 16,493.63 and 4,839.75

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Solution

The fourth proportional to 10,995.75, 16,493.63 and 4,839.75 is: 7,259.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.75 : 16,493.63 = 4,839.75 : x
  2. Step 2: Convert to fraction form
    10,995.75/16,493.63 = 4,839.75/x
  3. Step 3: Cross multiply
    10,995.75x = 16,493.63 × 4,839.75
  4. Step 4: Simplify right side
    10,995.75x = 79,825,021.59
  5. Step 5: Solve for x
    x = 79,825,021.59/10,995.75
  6. Step 6: Final answer
    x = 7,259.63

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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.