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Finding the Fourth Proportional to 20,649.09, 30,984.99 and 10,797.06

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Solution

The fourth proportional to 20,649.09, 30,984.99 and 10,797.06 is: 16,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.09 : 30,984.99 = 10,797.06 : x
  2. Step 2: Convert to fraction form
    20,649.09/30,984.99 = 10,797.06/x
  3. Step 3: Cross multiply
    20,649.09x = 30,984.99 × 10,797.06
  4. Step 4: Simplify right side
    20,649.09x = 334,546,796.13
  5. Step 5: Solve for x
    x = 334,546,796.13/20,649.09
  6. Step 6: Final answer
    x = 16,201.53

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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.