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Finding the Fourth Proportional to 43,250.67, 64,879.79 and 12,086.01

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Solution

The fourth proportional to 43,250.67, 64,879.79 and 12,086.01 is: 18,130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,250.67 : 64,879.79 = 12,086.01 : x
  2. Step 2: Convert to fraction form
    43,250.67/64,879.79 = 12,086.01/x
  3. Step 3: Cross multiply
    43,250.67x = 64,879.79 × 12,086.01
  4. Step 4: Simplify right side
    43,250.67x = 784,137,730.31
  5. Step 5: Solve for x
    x = 784,137,730.31/43,250.67
  6. Step 6: Final answer
    x = 18,130.07

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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.