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Finding the Fourth Proportional to 33,169.68, 45,775.12 and 18,829.28

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Solution

The fourth proportional to 33,169.68, 45,775.12 and 18,829.28 is: 25,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,169.68 : 45,775.12 = 18,829.28 : x
  2. Step 2: Convert to fraction form
    33,169.68/45,775.12 = 18,829.28/x
  3. Step 3: Cross multiply
    33,169.68x = 45,775.12 × 18,829.28
  4. Step 4: Simplify right side
    33,169.68x = 861,912,551.51
  5. Step 5: Solve for x
    x = 861,912,551.51/33,169.68
  6. Step 6: Final answer
    x = 25,984.95

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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.