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Finding the Fourth Proportional to 73,115.80, 109,585.50 and 33,618.76

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Solution

The fourth proportional to 73,115.80, 109,585.50 and 33,618.76 is: 50,387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,115.80 : 109,585.50 = 33,618.76 : x
  2. Step 2: Convert to fraction form
    73,115.80/109,585.50 = 33,618.76/x
  3. Step 3: Cross multiply
    73,115.80x = 109,585.50 × 33,618.76
  4. Step 4: Simplify right side
    73,115.80x = 3,684,128,623.98
  5. Step 5: Solve for x
    x = 3,684,128,623.98/73,115.80
  6. Step 6: Final answer
    x = 50,387.59

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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.