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Finding the Fourth Proportional to 32,891.92, 45,390.78 and 18,744.76

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Solution

The fourth proportional to 32,891.92, 45,390.78 and 18,744.76 is: 25,867.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,891.92 : 45,390.78 = 18,744.76 : x
  2. Step 2: Convert to fraction form
    32,891.92/45,390.78 = 18,744.76/x
  3. Step 3: Cross multiply
    32,891.92x = 45,390.78 × 18,744.76
  4. Step 4: Simplify right side
    32,891.92x = 850,839,277.31
  5. Step 5: Solve for x
    x = 850,839,277.31/32,891.92
  6. Step 6: Final answer
    x = 25,867.73

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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.