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Finding the Fourth Proportional to 43,226.99, 64,840.49 and 33,380.63

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Solution

The fourth proportional to 43,226.99, 64,840.49 and 33,380.63 is: 50,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,226.99 : 64,840.49 = 33,380.63 : x
  2. Step 2: Convert to fraction form
    43,226.99/64,840.49 = 33,380.63/x
  3. Step 3: Cross multiply
    43,226.99x = 64,840.49 × 33,380.63
  4. Step 4: Simplify right side
    43,226.99x = 2,164,416,405.71
  5. Step 5: Solve for x
    x = 2,164,416,405.71/43,226.99
  6. Step 6: Final answer
    x = 50,070.95

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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.