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Finding the Fourth Proportional to 68,770.68, 103,171.14 and 22,028.28

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Solution

The fourth proportional to 68,770.68, 103,171.14 and 22,028.28 is: 33,047.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,770.68 : 103,171.14 = 22,028.28 : x
  2. Step 2: Convert to fraction form
    68,770.68/103,171.14 = 22,028.28/x
  3. Step 3: Cross multiply
    68,770.68x = 103,171.14 × 22,028.28
  4. Step 4: Simplify right side
    68,770.68x = 2,272,682,759.84
  5. Step 5: Solve for x
    x = 2,272,682,759.84/68,770.68
  6. Step 6: Final answer
    x = 33,047.26

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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.