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Finding the Fourth Proportional to 33,998.40, 50,900.40 and 30,499.20

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Solution

The fourth proportional to 33,998.40, 50,900.40 and 30,499.20 is: 45,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,998.40 : 50,900.40 = 30,499.20 : x
  2. Step 2: Convert to fraction form
    33,998.40/50,900.40 = 30,499.20/x
  3. Step 3: Cross multiply
    33,998.40x = 50,900.40 × 30,499.20
  4. Step 4: Simplify right side
    33,998.40x = 1,552,421,479.68
  5. Step 5: Solve for x
    x = 1,552,421,479.68/33,998.40
  6. Step 6: Final answer
    x = 45,661.60

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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.