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Finding the Fourth Proportional to 33,069.49, 45,609.49 and 21,750.60

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Solution

The fourth proportional to 33,069.49, 45,609.49 and 21,750.60 is: 29,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,069.49 : 45,609.49 = 21,750.60 : x
  2. Step 2: Convert to fraction form
    33,069.49/45,609.49 = 21,750.60/x
  3. Step 3: Cross multiply
    33,069.49x = 45,609.49 × 21,750.60
  4. Step 4: Simplify right side
    33,069.49x = 992,033,773.19
  5. Step 5: Solve for x
    x = 992,033,773.19/33,069.49
  6. Step 6: Final answer
    x = 29,998.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.