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Finding the Fourth Proportional to 73,742.88, 110,614.74 and 18,338.88

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Solution

The fourth proportional to 73,742.88, 110,614.74 and 18,338.88 is: 27,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,742.88 : 110,614.74 = 18,338.88 : x
  2. Step 2: Convert to fraction form
    73,742.88/110,614.74 = 18,338.88/x
  3. Step 3: Cross multiply
    73,742.88x = 110,614.74 × 18,338.88
  4. Step 4: Simplify right side
    73,742.88x = 2,028,550,443.09
  5. Step 5: Solve for x
    x = 2,028,550,443.09/73,742.88
  6. Step 6: Final answer
    x = 27,508.42

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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.