Home / 33,178.60-45,735.78-28,724.20

Finding the Fourth Proportional to 33,178.60, 45,735.78 and 28,724.20

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Solution

The fourth proportional to 33,178.60, 45,735.78 and 28,724.20 is: 39,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,178.60 : 45,735.78 = 28,724.20 : x
  2. Step 2: Convert to fraction form
    33,178.60/45,735.78 = 28,724.20/x
  3. Step 3: Cross multiply
    33,178.60x = 45,735.78 × 28,724.20
  4. Step 4: Simplify right side
    33,178.60x = 1,313,723,691.88
  5. Step 5: Solve for x
    x = 1,313,723,691.88/33,178.60
  6. Step 6: Final answer
    x = 39,595.51

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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.